Bystander intervention and litter control
Subtitle: evaluation of an appeal-to-help program
By: Harriet H. Christensen
Contributors: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: Research paper PNW -- 287
Publisher: Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service
Published: 1981
Place of publication: Portland, Or
Language: eng
Number of pages: 25
Subjects: Litter (Trash); Recreation; Administration; Helping behavior
Notes: "July 1981."

Bibliography: p. 13-14.