TY - `BOOK` TI - University of Iowa studies in natural history J2 - Studies in natural history. 1918-1948; 1959-1971 PB - Univ. CY - Iowa City, Iowa PY - 1918-1971 LA - eng SN - 0041-9656 CN - ZSN 2405 B CN - H 254-25-8 AN - UBHD-1089340 ER -