World Who is Who and Does What in Environment and ConservationNicholas Polunin · First published 2009 · Latest edition 2013Open the Tome
World who is who and does what in environment & conservationNicholas Polunin · First published 1996 · Latest edition 1997Open the Tome
Introduction to plant geography and some related sciencesNicholas Polunin · First published 1960Open the Tome
Additions to the floras of Southampton and Mansel islands, Hudson BayNicholas Polunin · First published 1947Open the Tome
Botany of the Canadian eastern ArcticNicholas Vladimir Polunin · First published 1940 · Latest edition 1947Open the Tome