APA (7th ed.) Citation

Peart, S. A. (1991). Hypertext navigation by network structure. [publisher not identified].

Chicago Style (17th ed.) Citation

Peart, Sheila Ann. Hypertext Navigation by Network Structure. [Place of publication not identified]: [publisher not identified], 1991.

MLA (9th ed.) Citation

Peart, Sheila Ann. Hypertext Navigation by Network Structure. [publisher not identified], 1991.