Gaya APA
Alexander, G, G, U, ;, W, M. (1974).
Innovations in secondary education (ed. 2).
New York:
HOLT, RINEHART AND WINSTON.
Gaya MLA
Alexander, Glenys, G., Unruh, ;, William, M..
"Innovations in secondary education".
ed. 2
New York:
HOLT, RINEHART AND WINSTON,
1974.
Text.