APA (7th ed.) Citation

Day, W. R. (1957). Sitka Spruce in British Columbia: A study in forest relationships. HMSO.

Chicago Style (17th ed.) Citation

Day, William Robert. Sitka Spruce in British Columbia: A Study in Forest Relationships. London: HMSO, 1957.

MLA (9th ed.) Citation

Day, William Robert. Sitka Spruce in British Columbia: A Study in Forest Relationships. HMSO, 1957.

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