APA (7th ed.) Citation

Barden, W. T. (1983). How to do it on the TRS-80®: For the model I, II, III, color computer, and model 100. IJG Inc..

Chicago Style (17th ed.) Citation

Barden, William T. How to Do It on the TRS-80®: For the Model I, II, III, Color Computer, and Model 100. Upland, CA: IJG Inc., 1983.

MLA (9th ed.) Citation

Barden, William T. How to Do It on the TRS-80®: For the Model I, II, III, Color Computer, and Model 100. IJG Inc., 1983.