Παραπομπή σε μορφή APA (7η εκδ.)

Ramos, H. C. (1971). Discovery-centered versus teacher-centered patterns of instruction: Changes in critical thinking. s.n.].

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ramos, Herminia Cruz. Discovery-centered Versus Teacher-centered Patterns of Instruction: Changes in Critical Thinking. [Quezon City: s.n.], 1971.

Παραπομπή σε μορφή MLA (9th εκδ.)

Ramos, Herminia Cruz. Discovery-centered Versus Teacher-centered Patterns of Instruction: Changes in Critical Thinking. s.n.], 1971.