Torchio, P. F. (1974). Mechanisms involved in the pollination of Penstemon visited by the masarid wasp, Pseudomasaris vespoides (Cresson) (Hymenoptera: Vespoidea). Zenodo.
Chicago Style (17th ed.) CitationTorchio, Philip F. Mechanisms Involved in the Pollination of Penstemon Visited by the Masarid Wasp, Pseudomasaris Vespoides (Cresson) (Hymenoptera: Vespoidea). Zenodo, 1974.
MLA (9th ed.) CitationTorchio, Philip F. Mechanisms Involved in the Pollination of Penstemon Visited by the Masarid Wasp, Pseudomasaris Vespoides (Cresson) (Hymenoptera: Vespoidea). Zenodo, 1974.
Warning: These citations may not always be 100% accurate.