Folley, R. R. W. Instensive crop economics : an outline of principles of resource use management and marketing as adapted for horticultural crops / R. R. W. Folley. - London : Heinemann Educational Books, 1973. - xi, 331 p. : ill. ; 22 cm. Includes index. Subjects--Topical Terms: Agriculture--Economic aspects.Horticlture--Economic aspects. LC Class. No.: HD405 / .B58 1958