Porsild, A.E. Illustrated flora of the Canadian arctic archipelago / by A.E. Po rsild; illustrations by Dagny Tande Lid. - Toronto : Department of the Secretary of State, 1964. - 218 p. : ill. ; 25 cm. - Biological series ; no. 50 . Bulletin 146. Subjects--Topical Terms: Arctic archipelago -- Canada. Gov. Doc. Class. No.: G CAN S41 (08)2/146