Cita APA (7th ed.)

Alejandro, R. (1951). Principles of teaching and supervision: A handbook for young teachers. Philippine Book Co.

Cita Chicago (17th ed.)

Alejandro, Rufino. Principles of Teaching and Supervision: A Handbook for Young Teachers. Manila: Philippine Book Co, 1951.

Cita MLA (9th ed.)

Alejandro, Rufino. Principles of Teaching and Supervision: A Handbook for Young Teachers. Philippine Book Co, 1951.