John Buchan :
a memoir /
William Buchan.

APA Citation

Buchan, W. (1982). John Buchan: a memoir. London: Buchan & Enright.

MLA Citation

Buchan, William, 1916-2008. John Buchan: a Memoir. London: Buchan & Enright, 1982.

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