Dingwall, Laima. Muskrats / Laima Dingwall. - [Toronto] : Grolier, 1985. - 47 p. : ill., map. - Nature's children . ISBN: 0717219216 : $11.95 LCCN: cn 85098725 Subjects--Topical Terms: Muskrats. Dewey Class. No.: 599.32