TY - BOOK AU - Bagnold,Ralph A. TI - The physics of blown sand and desert dunes, AV - QE597 .B3 1941 U1 - 551.37 PY - 1941///] CY - London PB - Methuen KW - Ripple-marks KW - Sand dunes KW - Winds N1 - ''References'' at end of most of the chapters ER -