Wasserman, P., Sanders, E. T., & Sanders, J. (1978). Encyclopedia of geographic information sources: A detailed listing of publications and agencies of interest to managerial personnel, with a record of sourcebooks, periodicals, guides to doing business, government and trade offices, directories, handbooks, bibliographies, and other sources of information on each location : a companion volume to Encyclopedia of business information sources, third edition (3d ed.). Gale Research Co.
Chicago Style (17th ed.) CitationWasserman, Paul, Elizabeth Talbot Sanders, and James Sanders. Encyclopedia of Geographic Information Sources: A Detailed Listing of Publications and Agencies of Interest to Managerial Personnel, with a Record of Sourcebooks, Periodicals, Guides to Doing Business, Government and Trade Offices, Directories, Handbooks, Bibliographies, and Other Sources of Information on Each Location : A Companion Volume to Encyclopedia of Business Information Sources, Third Edition. 3d ed. Detroit: Gale Research Co, 1978.
MLA (9th ed.) CitationWasserman, Paul, et al. Encyclopedia of Geographic Information Sources: A Detailed Listing of Publications and Agencies of Interest to Managerial Personnel, with a Record of Sourcebooks, Periodicals, Guides to Doing Business, Government and Trade Offices, Directories, Handbooks, Bibliographies, and Other Sources of Information on Each Location : A Companion Volume to Encyclopedia of Business Information Sources, Third Edition. 3d ed. Gale Research Co, 1978.