APA (7th ed.) Citation

Shinwell, A. (1985). Prcatical guide to QL graphics and sound. Longman.

Chicago Style (17th ed.) Citation

Shinwell, Alan. Prcatical Guide to QL Graphics and Sound. London: Longman, 1985.

MLA (9th ed.) Citation

Shinwell, Alan. Prcatical Guide to QL Graphics and Sound. Longman, 1985.

Warning: These citations may not always be 100% accurate.