(1999). Mga pumasa sa exam: Metallurgical, mining engineer at geologist. Kabayan.
芝加哥风格引文"Mga Pumasa Sa Exam: Metallurgical, Mining Engineer at Geologist." Kabayan 1999.
MLA引文"Mga Pumasa Sa Exam: Metallurgical, Mining Engineer at Geologist." Kabayan, 1999.
警告：这些引文格式不一定是100％准确.