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Sorensen, Michael F

Observations of Mallards in the parkland of Alberta / Michael F. Sorensen.- - [Maryland: U.S Fish and Wildfire Service, 1978] - 22p. - (Canadian wildfire service: Ocassional paper; no.36) .

Bibilography p.20

ISBN: 0662016009

Subjects--Topical Terms:
Mallard--Observations

LC Class. No.: QL696 A52 / S6