APA (7th ed.) Citation

International Geographical Union. Commission on Geographical Data Sensing and Processing, Symposium on Geographical Information Systems, 2d, & Tomlinson, R. F. (1972). Geographical data handling (Symposium ed.). International Geographical Union Commission on Geographical Data Sensing and Processing.

Chicago Style (17th ed.) Citation

International Geographical Union. Commission on Geographical Data Sensing and Processing, 2d Symposium on Geographical Information Systems, and R. F. Tomlinson. Geographical Data Handling. Symposium ed. [Ottawa]: International Geographical Union Commission on Geographical Data Sensing and Processing, 1972.

MLA (8th ed.) Citation

International Geographical Union. Commission on Geographical Data Sensing and Processing, et al. Geographical Data Handling. Symposium ed. International Geographical Union Commission on Geographical Data Sensing and Processing, 1972.