Citazione Stile APA (7a Edizione)

Wedel, K. W. v., Zobel, B., & Shelbourne, C. J. A. (1967). Knotwood in loblolly pine. School of Forest Resources, North Carolina State University.

Citazione stile Chigago Style (17a edizione)

Wedel, Kay W. von, Bruce Zobel, e C. J. A. Shelbourne. Knotwood in Loblolly Pine. Raleigh, N.C.: School of Forest Resources, North Carolina State University, 1967.

Citatione MLA (8a ed.)

Wedel, Kay W. von, et al. Knotwood in Loblolly Pine. School of Forest Resources, North Carolina State University, 1967.