The ecology, cultivation, structural characteristics and mating types of Paramecium calkinsi /
Wichterman, Ralph
The ecology, cultivation, structural characteristics and mating types of Paramecium calkinsi / Ralph Wichterman - [S.l. : s.n.], 1951 - 51-65 p. : ill. ; 26 cm - Proceedings of the Pennsylvania academy of science ; 25 .
Tav. di studio SZN
The ecology, cultivation, structural characteristics and mating types of Paramecium calkinsi / Ralph Wichterman - [S.l. : s.n.], 1951 - 51-65 p. : ill. ; 26 cm - Proceedings of the Pennsylvania academy of science ; 25 .
Tav. di studio SZN