Gaya APA
Laffer, Walter B.. (1968).
Mathematics for General Education .
America:
Dickenson Publishing Company, Inc.
Gaya Chicago
Laffer, Walter B..
Mathematics for General Education.
America:
Dickenson Publishing Company, Inc,
1968.
.
Gaya MLA
Laffer, Walter B..
Mathematics for General Education.
America:
Dickenson Publishing Company, Inc,
1968.
.
Gaya Turabian
Laffer, Walter B..
Mathematics for General Education.
America:
Dickenson Publishing Company, Inc,
1968.
.