N.S. Jayawardane Subsoil Management Techniques - Boca Raton Lewis Publishers 1995 - 247p N.S. Jayawardane & B.A. Stewart: Subsoil Management Techniques. Boca Raton. Lewis Publishers, 1995. 1-56670-020-5--(631.4JAY) ENGLISH ISBN: 1-56670-020-5 Dewey Class. No.: 631.4 / JAY