APA(7版)引用形式
Howell, S. N., & Webb, S. A Guide to the Birds of Mexico and Northern Central America. Oxford University.
Chicagoスタイル(17版)引用形式
Howell, Steve N.G, , Sophie Webb. A Guide to the Birds of Mexico and Northern Central America. Nueva York, EUA: Oxford University.
MLA(9版)引用形式
Howell, Steve N.G, , Sophie Webb. A Guide to the Birds of Mexico and Northern Central America. Oxford University.
警告: この引用は必ずしも正確ではありません.