TY - BOOK AU - Rao, K R AU - Venkataranam, L ED - National Remote Sensing Agency, (Andhra Pradesh) TI - NRSA technical reports, 1977 U1 - 333 21st PY - 1977/// CY - Secunderabad PB - NRSA KW - Remote sensing; Methodology N1 - Contents: V.3. Ground Truth methodology for soilds ER -