APA (7th ed.) Citation

Heap, N. W. (1993). An introduction to OSI. Blackwell Scientific.

Chicago Style (17th ed.) Citation

Heap, N. W. An Introduction to OSI. Osney Meade, Oxford: Blackwell Scientific, 1993.

MLA (9th ed.) Citation

Heap, N. W. An Introduction to OSI. Blackwell Scientific, 1993.

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