APA (7th ed.) Citation

Lien, D. A. (1977). Basic computer language: It's easier than you think! Radio Shack.

Chicago Style (17th ed.) Citation

Lien, David A. Basic Computer Language: It's Easier than You Think! Fort Worth, Tex.: Radio Shack, 1977.

MLA (9th ed.) Citation

Lien, David A. Basic Computer Language: It's Easier than You Think! Radio Shack, 1977.