Παραπομπή σε μορφή APA (7η εκδ.)

Radford, G. J., & Butardo-Toribio, M. Z. (1996). Environmental planning and management concerns in the Calabarzon Area, Philippines. ERMP Institute of Environmental Science and Management.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Radford, Gregory J., και Ma. Zita Butardo-Toribio. Environmental Planning and Management Concerns in the Calabarzon Area, Philippines. College, Laguna: ERMP Institute of Environmental Science and Management, 1996.

Παραπομπή σε μορφή MLA (9th εκδ.)

Radford, Gregory J., και Ma. Zita Butardo-Toribio. Environmental Planning and Management Concerns in the Calabarzon Area, Philippines. ERMP Institute of Environmental Science and Management, 1996.