APA

Field W. D. 1., Dos Passos C. F. & Masters J. H. (1974). A bibliography of the catalogs, lists, faunal and other papers on the butterflies of North America north of Mexico arranged by state and province (Lepidoptera: Rhopalocera). Washington: Smithsonian Institution Press; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.].

Chicago

Field William Dewitt 1914, Dos Passos Cyril F and Masters John H. 1974. A bibliography of the catalogs, lists, faunal and other papers on the butterflies of North America north of Mexico arranged by state and province (Lepidoptera: Rhopalocera). Washington: Smithsonian Institution Press; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.].

Harvard

Field W. D. 1., Dos Passos C. F. and Masters J. H. (1974). A bibliography of the catalogs, lists, faunal and other papers on the butterflies of North America north of Mexico arranged by state and province (Lepidoptera: Rhopalocera). Washington: Smithsonian Institution Press; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.].

MLA

Field William Dewitt 1914, Dos Passos Cyril F and Masters John H. A bibliography of the catalogs, lists, faunal and other papers on the butterflies of North America north of Mexico arranged by state and province (Lepidoptera: Rhopalocera). Washington: Smithsonian Institution Press; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.]. 1974.