APA (7th ed.) Citation

(1955). Official grading rules for Northern (genuine) white pine, Norway pine - Jack pine, Eastern spruce, balsam, conforming to American lumber standards. Northern Hemlock and Hardwood Manufacturers Association.

Chicago Style (17th ed.) Citation

Official Grading Rules for Northern (genuine) White Pine, Norway Pine - Jack Pine, Eastern Spruce, Balsam, Conforming to American Lumber Standards. Oshkosh, Wisconcin: Northern Hemlock and Hardwood Manufacturers Association, 1955.

MLA (9th ed.) Citation

Official Grading Rules for Northern (genuine) White Pine, Norway Pine - Jack Pine, Eastern Spruce, Balsam, Conforming to American Lumber Standards. Northern Hemlock and Hardwood Manufacturers Association, 1955.