Citazione Stile APA (7a Edizione)

Marble, D. F., Calkins, H. W., & Peuquet, D. J. (1984). Basic readings in geographic information systems. SPAD Systems.

Citazione stile Chigago Style (17a edizione)

Marble, Duane F., Hugh W. Calkins, e Donna J. Peuquet. Basic Readings in Geographic Information Systems. Williamsville, N.Y: SPAD Systems, 1984.

Citatione MLA (9a ed.)

Marble, Duane F., et al. Basic Readings in Geographic Information Systems. SPAD Systems, 1984.