Denisen, Ervin L . Principles of horticulture / Ervine L. Denisen. - 2nd ed / . - New York : Macmillan publishing company , 1979. - xi,483p : pictures ; 26cm . Includes glossary,index ISBN: 0023283807 USD 41.95 Subjects--Index Terms: HORTICULTURE Dewey Class. No.: 635 / DEN/P