APA (7th ed.) Citation

Stallings, W. (1989). ISDN: An introduction. Macmillan.

Chicago Style (17th ed.) Citation

Stallings, William. ISDN: An Introduction. New York: Macmillan, 1989.

MLA (9th ed.) Citation

Stallings, William. ISDN: An Introduction. Macmillan, 1989.