Cita APA (7th ed.)

242627 Holmes, P. L. (1977). On-line information retrievel: An introduction and guide to the British Library's short-term experimental information network project. London : British Library Board.

Cita Chicago (17th ed.)

242627 Holmes, P. L. On-line Information Retrievel: An Introduction and Guide to the British Library's Short-term Experimental Information Network Project. London : British Library Board, 1977.

Cita MLA (9th ed.)

242627 Holmes, P. L. On-line Information Retrievel: An Introduction and Guide to the British Library's Short-term Experimental Information Network Project. London : British Library Board, 1977.