Janick, Jules Plant Science. : An Introduction To World Crops / By Jules Janick,Robert W Schery,Frank W Woods & Vernon W Ruttan . - 1st Ed. - America: W H Freeman And Company, 1969. - Viii, 629p.: 30cm. Appendix & Index. ISBN: 0716708159 Subjects--Index Terms: Specific topics in natural history, Botany Dewey Class. No.: 581