APA

Douglas Munroe D., Vickery V. R., . (1974). Systematics, phylogeny and zoogeography of Simmerus Walker and Australosymmerus Freeman (Diptera: Mycetophilidae : Ditomyiinae). Ottawa: Entomological Society of Canada.

Chicago

Douglas Munroe Donald, Vickery V R, . 1974. Systematics, phylogeny and zoogeography of Simmerus Walker and Australosymmerus Freeman (Diptera: Mycetophilidae : Ditomyiinae). Ottawa: Entomological Society of Canada.

Harvard

Douglas Munroe D., Vickery V. R., . (1974). Systematics, phylogeny and zoogeography of Simmerus Walker and Australosymmerus Freeman (Diptera: Mycetophilidae : Ditomyiinae). Ottawa: Entomological Society of Canada.

MLA

Douglas Munroe Donald, Vickery V R, . Systematics, phylogeny and zoogeography of Simmerus Walker and Australosymmerus Freeman (Diptera: Mycetophilidae : Ditomyiinae). Ottawa: Entomological Society of Canada. 1974.