Cita APA (7a ed.)

Heeks, R. (1986). Personal bibliographic indexes and their computerisation. Graham.

Cita Chicago Style (17a ed.)

Heeks, Richard. Personal Bibliographic Indexes and Their Computerisation. London: Graham, 1986.

Cita MLA (9a ed.)

Heeks, Richard. Personal Bibliographic Indexes and Their Computerisation. Graham, 1986.