Gaya APA
KIRK-OTHMER, . (1969).
ENCYCLOPEDIA OF CHEMICAL TECHNOLOGY: VOL. 20: TETRACYCLINES TO UNSATURATED POLYESTERS (2nd completely rev ed).
New York:
INTERSCIENCE PUBLISHERS.
Gaya MLA
KIRK-OTHMER, .
"ENCYCLOPEDIA OF CHEMICAL TECHNOLOGY: VOL. 20: TETRACYCLINES TO UNSATURATED POLYESTERS".
2nd completely rev ed
New York:
INTERSCIENCE PUBLISHERS,
1969.
Textbook.