APA Style
CURTIS, HELENA. (1968).
Biology (2nd).
New York:
WORTH PUBLISHERS INC.
Chicago Style
CURTIS, HELENA.
Biology.
2nd
New York:
WORTH PUBLISHERS INC,
1968.
TXB.
MLA Style
CURTIS, HELENA.
Biology.
2nd
New York:
WORTH PUBLISHERS INC,
1968.
TXB.
Turabian Style
CURTIS, HELENA.
Biology.
2nd
New York:
WORTH PUBLISHERS INC,
1968.
TXB.