Gaya APA
SMITH, E, T. (1959).
Exploring biology : The sciensces of living things (5).
Chicago:
Hartcourt, Brace & World Inc..
Gaya MLA
SMITH, Ella, Thea.
"Exploring biology : The sciensces of living things".
5
Chicago:
Hartcourt, Brace & World Inc.,
1959.
Text.