STEINLAGE, R. C. (1981). College algebra and trigonometry. Goodyear Pub. Co.
芝加哥风格引文STEINLAGE, Ralph C. College Algebra and Trigonometry. California: Goodyear Pub. Co, 1981.
MLA引文STEINLAGE, Ralph C. College Algebra and Trigonometry. Goodyear Pub. Co, 1981.
警告：这些引文格式不一定是100％准确.