APA (7th ed.) Citation

Haigh, R. W., & Radford, L. E. (1983). BASIC for microcomputers: Apple, TRS-80, PET.

Chicago Style (17th ed.) Citation

Haigh, Roger W., and Loren E. Radford. BASIC for Microcomputers: Apple, TRS-80, PET. 1983.

MLA (9th ed.) Citation

Haigh, Roger W., and Loren E. Radford. BASIC for Microcomputers: Apple, TRS-80, PET. 1983.

Warning: These citations may not always be 100% accurate.