Karyadi, D., & Nasoetion, A. H. (1991). Vitamin. PT. Gramedia.
芝加哥风格引文Karyadi, Darwin, 与 Andi Hakim Nasoetion. Vitamin. PT. Gramedia, 1991.
MLA引文Karyadi, Darwin, 与 Andi Hakim Nasoetion. Vitamin. PT. Gramedia, 1991.
警告：这些引文格式不一定是100％准确.
APA引文