APA (7th ed.) Citation

Hahn, B. D. (1988). True BASIC: By problem solving. VCH.

Chicago Style (17th ed.) Citation

Hahn, Brian D. True BASIC: By Problem Solving. New York, NY, USA: VCH, 1988.

MLA (9th ed.) Citation

Hahn, Brian D. True BASIC: By Problem Solving. VCH, 1988.