Style de citation APA (7e éd.)

Heap, G. (1992). Structures approach to systems development. McGraw-Hill.

Style de citation Chicago (17e éd.)

Heap, Gary. Structures Approach to Systems Development. London: McGraw-Hill, 1992.

Style de citation MLA (9e éd.)

Heap, Gary. Structures Approach to Systems Development. McGraw-Hill, 1992.