Style de citation APA (7e éd.)

Hopkins , W. C., & Williams, D. L. (1968). Converting factors for Southern pine products. State University.

Style de citation Chicago (17e éd.)

Hopkins , William C., et David L. Williams. Converting Factors for Southern Pine Products. Louisiana: State University, 1968.

Style de citation MLA (9e éd.)

Hopkins , William C., et David L. Williams. Converting Factors for Southern Pine Products. State University, 1968.