Laureles , F. B. I., Mangalinao, A. V., Valenzuela, R. I. O., & Sundiang, C. (2001). Aral kalikasan: Mount Purro Environmental Educational Camp.
芝加哥风格引文Laureles , Fred Benedick III, Ariel V. Mangalinao, Rolando III O. Valenzuela, 与 Cynthia Sundiang. Aral Kalikasan: Mount Purro Environmental Educational Camp. 2001.
MLA引文Laureles , Fred Benedick III, et al. Aral Kalikasan: Mount Purro Environmental Educational Camp. 2001.
警告：这些引文格式不一定是100％准确.