British Columbia. Forest Surveys and Inventory Division. (1957). Forest survey notes. Forest Surveys and Inventory Division, British Columbia Forest Service.
芝加哥风格引文British Columbia. Forest Surveys and Inventory Division. Forest Survey Notes. Victoria, B.C.: Forest Surveys and Inventory Division, British Columbia Forest Service, 1957.
MLA引文British Columbia. Forest Surveys and Inventory Division. Forest Survey Notes. Forest Surveys and Inventory Division, British Columbia Forest Service, 1957.
警告：这些引文格式不一定是100％准确.