THE ECOLOGY AND LIFE HISTORY OF THE POND SNAIL PHYSA-GYRINA

[1] AGERSBORG HPK, 1932, SAY NAUTILUS, V45, P121

[2] ALSTERBERG G, UNPUB

[3] BAKER FC, 1928, WISC GEOL NAT HIST S, V70

[4] BAKER HB, 1914, MICH ACAD SCI REP, V16, P18

[5] BERRY EG, 1943, MISC PUB MUS ZOOL, V57

[6] CHEATUM ELMER PHILIP, 1934, TRANS AMER MICROSC SOC, V53, P348, DOI 10.2307/3222383

[7] GOODRICH C, 1932, U MUS HDB SER, V5

[8] KENK R, 1949, MISC PUB MUS ZOOL, V71

[9] A biological study of a temporary pond in Western Canada [J]. AMERICAN NATURALIST, 1932, 66 : 235 - 249

[10] PEARL R, 1902, MICH ACAD SCI REP, V3, P75

[1] AGERSBORG HPK, 1932, SAY NAUTILUS, V45, P121

[2] ALSTERBERG G, UNPUB

[3] BAKER FC, 1928, WISC GEOL NAT HIST S, V70

[4] BAKER HB, 1914, MICH ACAD SCI REP, V16, P18

[5] BERRY EG, 1943, MISC PUB MUS ZOOL, V57

[6] CHEATUM ELMER PHILIP, 1934, TRANS AMER MICROSC SOC, V53, P348, DOI 10.2307/3222383

[7] GOODRICH C, 1932, U MUS HDB SER, V5

[8] KENK R, 1949, MISC PUB MUS ZOOL, V71

[9] A biological study of a temporary pond in Western Canada [J]. AMERICAN NATURALIST, 1932, 66 : 235 - 249

[10] PEARL R, 1902, MICH ACAD SCI REP, V3, P75