1. Six-membered heterocyclic nitrogen compounds with four condensed rings
Author: Allen, Charles Francis Hitchcock
Library: Library of College of Science University of Tehran (Tehran)
Subject: ، Organonitrogen compounds,، Heterocyclic compounds
Classification :
QD
401
.
A42
2. Six-membered heterocyclic nitrogen compounds with three condensed
Author: ALLEN,CHARLES FRANCIS HITCHCOCK
Library: Central Library of Amirkabir University of Technology (Tehran)
Subject: NITROGEN COMPOUNDS , HETEROCYCLIC COMPOUNDS
Classification :
QD
401
.
A43
3. Six-membered heterocyclic nitrogen compounds with three condensed rings
Author: Allen, Charles Francis Hitchcock
Library: Central Library and Documents Center of Industrial University of Khaje Nasiredin Toosi (Tehran)
Subject: ، Organonitrogen compounds,، Heterocyclic compounds
Classification :
QD
401
.
A43
4. Six-membered heterocyclic nitrogen compounds with three condensed rings
Author: Allen, Charles Francis Hitchcock, 5981-
Library: Central Library and Documents Center of Industrial University of Khaje Nasiredin Toosi (Tehran)
Subject: ، Organonitrogen compounds,، Heterocyclic compounds
Classification :
QD
401
.
A43
5. Six-membered heterocyclic nitrogen compounds with three condensed rings
Author: Allen, Charles Francis Hitchcock
Library: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
Subject: ، Organonitrogen compounds,، Heterocyclic compounds
Classification :
QD
401
.
A43
6. Six-membered heterocyclic nitrogen compounds with three condensed rings
Author: Allen, Charles Francis Hitchcock
Library: Central Library and Information Center of Birjand University (South Khorasan)
Subject: ، Nitrogen compounds,، Heterocyclic compounds
Classification :
QD
401
.
A43
