APA-referens

Coombs, J., & Coombs, T. (1996). Powerbuilder 4 programming for dummies. - 4th ed. , (4th ed. ,.). BPB publications.

Chicago-stil citat

Coombs, Jason, och Ted Coombs. Powerbuilder 4 Programming for Dummies. - 4th Ed. ,. 4th ed. ,. New Delhi: BPB publications, 1996.

MLA-referens

Coombs, Jason, och Ted Coombs. Powerbuilder 4 Programming for Dummies. - 4th Ed. ,. 4th ed. ,. BPB publications, 1996.