APA (7e ed.) Bronvermelding

Powell, J. A. (1973). A systematic monograph of New World Ethmiid moths (Lepidoptera: Gelechioidea). Smithsonian Institution Press; [for sale by the Supt. of Docs.

Chicago (17e ed.) Bronvermelding

Powell, Jerry A. A Systematic Monograph of New World Ethmiid Moths (Lepidoptera: Gelechioidea). Washington: Smithsonian Institution Press; [for sale by the Supt. of Docs, 1973.

MLA (9e ed.) Bronvermelding

Powell, Jerry A. A Systematic Monograph of New World Ethmiid Moths (Lepidoptera: Gelechioidea). Smithsonian Institution Press; [for sale by the Supt. of Docs, 1973.