Cruz, A. A., Hidalgo, N. P., & Santos, H. H. (1987). A survey of SDI services in selected special libraries and information centers in Metro Manila.
芝加哥风格引文Cruz, Aida A., Namnama P. Hidalgo, 与 Herminia H. Santos. A Survey of SDI Services in Selected Special Libraries and Information Centers in Metro Manila. Quezon City : Institute of Library Science, University of the Philippines Diliman, 1987.
MLA引文Cruz, Aida A., et al. A Survey of SDI Services in Selected Special Libraries and Information Centers in Metro Manila. 1987.
警告：这些引文格式不一定是100％准确.