Gaya APA
English 900. (1971).
Philippines:
Macmillan Company.
Gaya Chicago
English 900.
.
Philippines:
Macmillan Company,
1971.
Text.
Gaya MLA
English 900.
.
Philippines:
Macmillan Company,
1971.
Text.
Gaya Turabian
English 900.
Philippines:
Macmillan Company,
1971.
Print.