APA način citiranja (7. izdanje)

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

Čikaški stil citiranja (17. izdanje)

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

MLA način citiranja (9. izdanje)

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