Gaya APA
Heiser, C, B. (1973).
SEED TO CIVILIZATION; The Story of Man's Food .
San Francisco:
W.H. FREEMAN AND COMPANY.
Gaya MLA
Heiser, Charles, B..
"SEED TO CIVILIZATION; The Story of Man's Food".
San Francisco:
W.H. FREEMAN AND COMPANY,
1973.
Text.