1. ......................
Author: Helmkamp, George K.
Library: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
Subject: Laboratory manuals ، Chemistry, Organic,Experiments ، Chemistry, Organic
Classification :
QD
261
.
H33
1963
2. An outline of organic chemistry
Author: / by J. Ernest Simpson . Corwin Bonsch and George K. Helmkamp,Simpson
Library: Central Library and Documents Center of Tehran University (Tehran)
Subject: Chemistry, Organic--Outlines, syllabietc
Classification :
QD
253
.
S52
1975
3. #<An> outline of organic chemistry
Author: #J. Ernest Simpson, Corwin Hansch, George K. Helmkamp
Library: Central Library of Esfehan University of Technology (Esfahan)
Subject: Chemistry, Organic -- Outlines, syllabi, etc ،Chemistry, Organic -- Problems, exercises, etc
Classification :
#
QD
،#.
H3
،#
1975
4. <An> outline of organic chemistry : problems and answers
Author: / J. Ernest Simpson, Crowin Hansch, George K. Helmkamp
Library: Central Library and Documents Center of Mazandaran University (Mazandaran)
Subject: Chemistry, Organic-- Problems,Chemistry, Organic-- Outlines
Classification :
QD253
.
S52
1975
5. Selected experiments in organic chemistry
Author: HELMKAMP,GEORGE K
Library: Central Library of Amirkabir University of Technology (Tehran)
Subject: CHEMISTRY,ORGANIC-LABORATORY MANUALS , CHEMISTRY,ORGANIC-EXPERIMENTS
Classification :
QD
261
.
H44
1968
6. Selected experiments in organic chemistry
Author: /George K Helmkamp.
Library: National Library and Archives of Islamic Republic of Iran (Tehran)
Subject: شیمی آلی, -- دستنامههای آزمایشگاهی
Classification :
QD
۲۶۱
/
ھ
۸
س
۸ ۱۳۴۳
7. Selected experiments in organic chemistry
Author: / [ by ] George K. Helmkamp and Harry W . Johnson,Helmkamp
Library: Central Library and Documents Center of Tehran University (Tehran)
Subject: Chemistry, Organic -- Laboratory manuals
Classification :
QD
261
.
H4
