Harvard: Voegelin, C.F., and F. M. Voegelin. 1977, "Classification and index of the world's languages,", Elsevier,.APA: Voegelin, C.F., and F. M. Voegelin. (1977). Classification and index of the world's languages,. . Elsevier,.Chicago: Voegelin, C. F., and F. M. Voegelin. 1977. "Classification and Index of the World's Languages,." . Elsevier,.MLA: Voegelin, C. F., and F. M. Voegelin. "Classification and Index of the World's Languages,." (1977): .Citation within the text: (Voegelin & F. 1977)Zotero: Save reference in ZoteroBibTeX:
@article{voegelin1977classification,
author = {Voegelin, C. F., and {F. M. Voegelin}, {}},
title = {Classification and index of the world's languages,},
publisher = {Elsevier,},
address = {New York},
year = {1977},
x-huffmanId = {5339},
x-length = {658p.},
source = {huffman-l-z},
}