1. Aphids on the world's crops: An identification guide
Author: Blackman, Roger L.
Library: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
Subject: Host plants ، Aphididae,Diseases and pests ، Field crops
Classification :
SB
945
.
P64
B5
1984


2. Aphids on the world's crops: an identification and information guide
Author: Blackman, Roger L.
Library: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
Subject: Host plants ، Aphididae,Diseases and pests ، Field crops
Classification :
SB
945
.
A5
B63
2000


3. Aphids on the world's crops : an indentification and information guide
Author: Blackman, R. L. )Roger L.(
Library: Central Library and Documentation Center (Kerman)
Subject: ، Aphididae - Host plants,، Field crops - Diseases and pests
Classification :
SB
945
.
A5
B63
2000

