APA (7th ed.) Citation

European Conference on Geographical Information Systems Genoa, Italy, EGIS Foundation, Scholten, H. J., Harts, J., Ottens, H. F. L., & Ondaatje, D. A. (1993). EGIS '93: Conference proceedings. EGIS Foundation.

Chicago Style (17th ed.) Citation

European Conference on Geographical Information Systems Genoa, Italy, EGIS Foundation, H. J. Scholten, JanJaap Harts, Henk F. L. Ottens, and Deby A. Ondaatje. EGIS '93: Conference Proceedings. Utrecht: EGIS Foundation, 1993.

MLA (8th ed.) Citation

European Conference on Geographical Information Systems Genoa, Italy, et al. EGIS '93: Conference Proceedings. EGIS Foundation, 1993.