Gaya APA
Clark, L, H., Starr, I, S. (1981).
Secondary and middle school teaching methods (4th ed.).
New York:
Macmillan Pub..
Gaya MLA
Clark, Leonard, H.., Starr, Irving, S..
"Secondary and middle school teaching methods".
4th ed.
New York:
Macmillan Pub.,
1981.
Text.