Gaya APA

ENGLISH, J., CASSIDY, H, G. (1961). PRINCIPLES OF ORGANIC CHEMISTRY: AN INTRODUCTORY TEXT IN ORGANIC CHEMISTRY . New York: McGRAW-HILL.

Gaya MLA

ENGLISH, James., CASSIDY, HAROLD, G.. "PRINCIPLES OF ORGANIC CHEMISTRY: AN INTRODUCTORY TEXT IN ORGANIC CHEMISTRY". New York: McGRAW-HILL, 1961. Textbook.