Galvante, W. P., Magalong, M. M., & Mencias, C. F. A content analysis of Environmental Science I.
芝加哥风格引文Galvante, Wulfilda P., Milagrosa M. Magalong, 与 Cristina F. Mencias. A Content Analysis of Environmental Science I. Quezon City, 1974.
MLA引文Galvante, Wulfilda P., et al. A Content Analysis of Environmental Science I.
警告：这些引文格式不一定是100％准确.