Piper, R. J. (1985). Opportunities in architecture. VGM Career Horizons.
芝加哥风格引文Piper, Robert J. Opportunities in Architecture. Lincolnwood, Ill: VGM Career Horizons, 1985.
MLA引文Piper, Robert J. Opportunities in Architecture. VGM Career Horizons, 1985.
警告：这些引文格式不一定是100％准确.