Marble, D. F., Calkins, H. W., & Peuquet, D. J. (1984). Basic readings in geographic information systems. SPAD Systems.
芝加哥风格引文Marble, Duane F., Hugh W. Calkins, 与 Donna J. Peuquet. Basic Readings in Geographic Information Systems. Williamsville, N.Y: SPAD Systems, 1984.
MLA引文Marble, Duane F., et al. Basic Readings in Geographic Information Systems. SPAD Systems, 1984.
警告：这些引文格式不一定是100％准确.