Gaya APA
Lial, M. (1993).
Trigonometry (5th).
California:
Harper Collinc.
Gaya Chicago
Lial, M.
Trigonometry.
5th
California:
Harper Collinc,
1993.
Text.
Gaya MLA
Lial, M.
Trigonometry.
5th
California:
Harper Collinc,
1993.
Text.
Gaya Turabian
Lial, M.
Trigonometry.
5th
California:
Harper Collinc,
1993.
Print.