Acta
Acta Zoologica Fennica. 147. -- (1977), 147: Hemiptera of the Sudan, with remarks on some species of the adjacent countries. 5., Tingidae, Piesmidae, Cydnidae, Thaumastellidae and Plataspidae. -- Helsinki : Societas pro Fauna et Flora Fennica, 1977.
zoologie. odborné časopisy
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