APA (7th ed.) Citation

Hallgren, R. C. (1982). Interface projects for the TRS-80. Prentice-Hall.

Chicago Style (17th ed.) Citation

Hallgren, Richard C. Interface Projects for the TRS-80. Englewood Cliffs, N.J.: Prentice-Hall, 1982.

MLA (9th ed.) Citation

Hallgren, Richard C. Interface Projects for the TRS-80. Prentice-Hall, 1982.

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