APA (7th ed.) Citation

Roitt, I. M. (1995). Roitt immunology textstack [computer file]. Keyboard.

Chicago Style (17th ed.) Citation

Roitt, Ivan M. Roitt Immunology Textstack [computer File]. Blue Bell, PA: Keyboard, 1995.

MLA (9th ed.) Citation

Roitt, Ivan M. Roitt Immunology Textstack [computer File]. Keyboard, 1995.