Tanggol Kalikasan, Inc, Seminar on Environmental Law, Rodrigo, N. P., & Quicho, R. F. N. (2001). The Environment on the scale: Ipagtanggol ang kalikasan II : conference proceedings, July 23-26, 2001, Legend Hotel, Puerto Princesa City, Palawan. Tanggol Kalikasan.
Cytowanie według stylu Chicago (wyd. 17)Tanggol Kalikasan, Inc, Seminar on Environmental Law, Nancy Pe Rodrigo, i Rodolfo Ferdinand N. Quicho. The Environment on the Scale: Ipagtanggol Ang Kalikasan II : Conference Proceedings, July 23-26, 2001, Legend Hotel, Puerto Princesa City, Palawan. [Metro Manila]: Tanggol Kalikasan, 2001.
Cytowanie według stylu MLA (wyd. 9)Tanggol Kalikasan, Inc, et al. The Environment on the Scale: Ipagtanggol Ang Kalikasan II : Conference Proceedings, July 23-26, 2001, Legend Hotel, Puerto Princesa City, Palawan. Tanggol Kalikasan, 2001.