Cita APA

Spiers, J. J. K. 1., & Spiers, J. J. K. 1. (1986). Logging operations guidelines. Wellington, N.Z.: Logging Industry Research Association.

Citación estilo Chicago

Spiers, John James Kennedy 1923-, y John James Kennedy 1923- Spiers. Logging Operations Guidelines. Wellington, N.Z.: Logging Industry Research Association, 1986.

Cita MLA

Spiers, John James Kennedy 1923-, y John James Kennedy 1923- Spiers. Logging Operations Guidelines. Wellington, N.Z.: Logging Industry Research Association, 1986.