DeYoung, J. (2016). Forest Measurements: An Applied Approach. Open Oregon Educational Resources.
Chicago-viite (17. p.)DeYoung, Joan. Forest Measurements: An Applied Approach. [Place of publication not identified]: Open Oregon Educational Resources, 2016.
MLA-viite (9. p.)DeYoung, Joan. Forest Measurements: An Applied Approach. Open Oregon Educational Resources, 2016.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.