TY - RPRT TI - Porosity evolution, Late Miocene reefs, Almeria Province, southern Spain AU - Augustus K. Armstrong AU - P. D. Snavely AU - Warren O. Addicott PY - 1978 DO - 10.3133/ofr78940 UR - https://pubs.usgs.gov/publication/ofr78940 ID - ofr78940 ER -