APA (7th ed.) Citation

Blackwood, B. D., & Blackwood, G. H. (1981). Applesoft language (1st printing.). Howard W. Sams.

Chicago Style (17th ed.) Citation

Blackwood, Brian D., and George H. Blackwood. Applesoft Language. 1st printing. Indianapolis: Howard W. Sams, 1981.

MLA (9th ed.) Citation

Blackwood, Brian D., and George H. Blackwood. Applesoft Language. 1st printing. Howard W. Sams, 1981.