Cita APA (7th ed.)

Ilusorio, R. K. (1987). Human involution. Multinational Foundation, Inc.

Cita Chicago (17th ed.)

Ilusorio, Ramon K. Human Involution. [Manila]: Multinational Foundation, Inc, 1987.

Cita MLA (9th ed.)

Ilusorio, Ramon K. Human Involution. Multinational Foundation, Inc, 1987.