Cita APA (7th ed.)

Aprieto, P. N. (1988). Dinosaurs walk the earth and other observations. Adriano Printing.

Cita Chicago (17th ed.)

Aprieto, Pacifico N. Dinosaurs Walk the Earth and Other Observations. Quezon City: Adriano Printing, 1988.

Cita MLA (9th ed.)

Aprieto, Pacifico N. Dinosaurs Walk the Earth and Other Observations. Adriano Printing, 1988.