The PICK operating system /
Joseph St John Bate and Mike Wyatt.

APA Citation

Bate, J. St. John., Wyatt, M. (1986). The PICK operating system. London: Collins.

MLA Citation

Bate, Joseph St. John, and Mike Wyatt. The PICK Operating System. London: Collins, 1986.

Warning: These citations may not always be complete (especially for serials).