WOOLARD, E. W., & CLEMENCE, G. M. (1966). Spherical astronomy. Academic Press.
芝加哥风格引文WOOLARD, Edgar W., 与 Gerald M. CLEMENCE. Spherical Astronomy. New York: Academic Press, 1966.
MLA引文WOOLARD, Edgar W., 与 Gerald M. CLEMENCE. Spherical Astronomy. Academic Press, 1966.
警告：这些引文格式不一定是100％准确.