APA Style
CRAWFORD, A.M.. (1968).
Programmed Trigonometry .
London:
Methuen Educational.
Chicago Style
CRAWFORD, A.M..
Programmed Trigonometry.
London:
Methuen Educational,
1968.
Text.
MLA Style
CRAWFORD, A.M..
Programmed Trigonometry.
London:
Methuen Educational,
1968.
Text.
Turabian Style
CRAWFORD, A.M..
Programmed Trigonometry.
London:
Methuen Educational,
1968.
Print.