1. Crop production
Author: / Harold D. Hughes, Darrel S. Metcalfe
Library: Central Library and Archive Center of shahid Beheshti University (Tehran)
Subject: Field crops
Classification :
633
Hu-C
2. Crop production
Author: Hughes, Harold De Mott
Library: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
Subject: ، Field crops
Classification :
SB
185
.
H75
1972
3. Crop production
Author: / [by] Harold D. Hughes [and] Darrel S. Metcalfe
Library: Central Library and Information Center of the University of Mohaghegh Ardabili (Ardabil)
Subject: Field crops
Classification :
SB185
.
H75
1972
4. Crop production; principles and practices; a handbook of information for the student of agriculture
Author: Hughes, Harold de Mott
Library: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
Subject: ، Agriculture
Classification :
S
501
.
H83
5. Forages
Author: Under editorial authorship of Maurice E. Heath, Darrel S. Metcalfe [and]& Robert F. Barnes, with 93 additional contributing authors
Library: Central Library and Information Center of Shahed University (Tehran)
Subject: Forage plants,Forage plants United States
Classification :
SB
،
193
،.
H4
،
1973
6. Forages: the science of grassland agriculture
Author: / Under editorial authorship of Maurice E. Heath, Darrel S. Metcalfe [and] Robert F. Barnes, with 93 additional contributing authors
Library: Central Library and Information Center of the University of Mohaghegh Ardabili (Ardabil)
Subject: Forage plants,Forage plants -- United States
Classification :
SB193
.
H4
1973
7. Forages, the science of grassland agriculture
Author: / Under the editorial authorsship of H.D.Hughes, Maurice E. Heath [and] Darrel S. Metcalfe, with 52 additional contributing authors,Hughes
Library: Central Library and Documents Center of Tehran University (Tehran)
Subject: Forage plants-U.S
Classification :
SB
193
.
H8
8. Telecommunications cables
Author: / Harold Hughes,Hughes
Library: Central Library and Documents Center of Tehran University (Tehran)
Subject: Telecommunication cables
Classification :
TK
5103
.
H85
1997
