
1.		Principal components-like procedures for cross-tabulated recreation data : an illustration from search activity related to park choice / James E. Christensen Autor: Christensen, James E.
2.		The relationship between biophysical and social setting factors in the recreation opportunity spectrum / John L. Heywood, James E. Christensen, George H. Stankey Autor: Heywood, John L. Coautor: ; Christensen, James E. Resp- Sec.: Stankey, George H.

Principal components-like procedures for cross-tabulated recreation data : an illustration from search activity related to park choice / James E. Christensen

Autor: Christensen, James E.

The relationship between biophysical and social setting factors in the recreation opportunity spectrum / John L. Heywood, James E. Christensen, George H. Stankey

Autor: Heywood, John L. Coautor: ; Christensen, James E. Resp- Sec.: Stankey, George H.