Cita APA (7th ed.)

Richardson, E. (1983). David T. Mason: Forestry advocate. Forest History Society.

Cita Chicago (17th ed.)

Richardson, Elmo. David T. Mason: Forestry Advocate. Santa Cruz, Calif.: Forest History Society, 1983.

Cita MLA (9th ed.)

Richardson, Elmo. David T. Mason: Forestry Advocate. Forest History Society, 1983.