Penggayaan APA
Risk,Thomas. (1941).
Principles and practices of teaching .
U.S.A:
American Book Company.
Chicago Style
Risk,Thomas.
Principles and practices of teaching.
U.S.A:
American Book Company,
1941.
Text.
MLA Style
Risk,Thomas.
Principles and practices of teaching.
U.S.A:
American Book Company,
1941.
Text.
Turabian Style
Risk,Thomas.
Principles and practices of teaching.
U.S.A:
American Book Company,
1941.
Print.