APA (7e ed.) Bronvermelding

Marker, B., & McCall, G. J. H. (1989). Earth science mapping for planning, development, and conservation. Graham & Trotman.

Chicago (17e ed.) Bronvermelding

Marker, Brian, en Gerald Joseph Home McCall. Earth Science Mapping for Planning, Development, and Conservation. London: Graham & Trotman, 1989.

MLA (9e ed.) Bronvermelding

Marker, Brian, en Gerald Joseph Home McCall. Earth Science Mapping for Planning, Development, and Conservation. Graham & Trotman, 1989.