Premigrational movements and behavior of young mallards and wood ducks in north-central Minnesota / by Ronald E. Kirby, Lewis M. Cowardin, John R. Tester
Physical description for original version: iii, 25 p. : 27 cm
書誌注記
Includes bibliographical references (p. 23-25)
原資料等に関する注記
原資料の出版事項: Washington, D.C. ; Springfield, VA : U.S. Dept. of the Interior, Fish and Wildlife Service : National Technical Information Service [distributor], 1989