TY - BOOK AU - Retallack, G.J. TI - Soils of the past: an introduction to paleopedology SN - 0045511284 U1 - 552.5 21st ed. PY - 1990/// CY - London PB - Unwin Hyman KW - Paleosoils KW - Soil formation N1 - Index: p. 507-20 ER -