SAMUELSON, P. A. (1967). Economics: Pengantar uraian 1. Viva Study Club.
芝加哥风格引文SAMUELSON, Paul A. Economics: Pengantar Uraian 1. Jakarta: Viva Study Club, 1967.
MLA引文SAMUELSON, Paul A. Economics: Pengantar Uraian 1. Viva Study Club, 1967.
警告：这些引文格式不一定是100％准确.