TY - BOOK AU - Jaques,H.E. TI - How to know the economic plants: an illustrated key for identifying the plants used by man for food and in other personal ways, with some essential facts about each plant T2 - Pictured key nature series PY - 1958///] CY - Dubuque, Iowa PB - W. C. Brown Co. KW - Botany, Economic KW - Local ER -