(1928). Classification. Class S: Agricultural, plant and animal industry, fish culture and fisheries, hunting sports (2d ed.). U.S. Govt. print. off.
Chicago-Zitierstil (17. Ausg.)Classification. Class S: Agricultural, Plant and Animal Industry, Fish Culture and Fisheries, Hunting Sports. 2d ed. Washington: U.S. Govt. print. off, 1928.
MLA-Zitierstil (9. Ausg.)Classification. Class S: Agricultural, Plant and Animal Industry, Fish Culture and Fisheries, Hunting Sports. 2d ed. U.S. Govt. print. off, 1928.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.