The recording quizboard
Subtitle: a device for evaluating interpretive services
By: J. Alan Wagar.
Contributors: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: USDA Forest Service research paper PNW -- no. 139.; USDA Forest Service research paper PNW -- 139.
Publisher: Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service
Published: 1972
Place of publication: Portland, Or
Language: eng
Number of pages: 12
Subjects: Information display systems.; Teaching -- Aids and devices.; National parks and reserves -- Interpretive programs -- United States.
Notes: Cover title.

Includes bibliographical references.