1
Published 1979]
Subjects: ';
“...Waterfowl West (U.S.) Statistics....”Report Number(s): APA 3147
Link to full text
2
by Schweinsburg, R. E.
Published [1974]
Subjects: ';
“...Waterfowl Effect of aircraft on Yukon North Slope....”Published [1974]
Report Number(s): APA 3180
Link to full text
3
by Schweinsburg, R. E.
Published [1974]
Subjects: ';
“...Waterfowl Effect of aircraft on Northwest Territories Mackenzie River Valley....”Published [1974]
Report Number(s): APA 3181
Link to full text