Piper, C.S. . Soil and Plant Analysis / Textual Documents C.S. Piper. - 1st ed / - Bombay : Hans Publishers , 1966. - xiv, 368p. : ill ; 22cm. . Index ISBN: 81-86599-53-3 Subjects--Index Terms: Botany Agriculture Plant, Analysis Soil G-Technology Dewey Class. No.: 631.4 / P 661 So