Petro, F. J., Felling and bucking hardwoods : how to improve your Profit / F. J. Petro. - 1a ed. - Ottawa, Canada : Minister of Fisheries and Forestry, 1971 - viii, 140 p. : il. ; 24 cm. Incluye glosario Bibliografía : p. 132-138 Subjects--Topical Terms: Maderas duras--CanadaTala de bosques--Canada LC Class. No.: SD538 / P48 1971