Cita APA (7th ed.)

Laureles , F. B. I., Mangalinao, A. V., Valenzuela, R. I. O., & Sundiang, C. (2001). Aral kalikasan: Mount Purro Environmental Educational Camp.

Cita Chicago (17th ed.)

Laureles , Fred Benedick III, Ariel V. Mangalinao, Rolando III O. Valenzuela, i Cynthia Sundiang. Aral Kalikasan: Mount Purro Environmental Educational Camp. 2001.

Cita MLA (9th ed.)

Laureles , Fred Benedick III, et al. Aral Kalikasan: Mount Purro Environmental Educational Camp. 2001.