Gaya APA
Lardizabal, A, S. et al (1978).
Principles and Methods of Teaching Second Edition .
Quezon City:
Alemar-Phoenix.
Gaya MLA
Lardizabal, Amparo, S.. et al.
"Principles and Methods of Teaching Second Edition".
Quezon City:
Alemar-Phoenix,
1978.
Text.