Harrison, C. J. O. (1978). A field guide to the nests, eggs, and nestlings of North American birds. Collins.
芝加哥风格引文Harrison, Colin James Oliver. A Field Guide to the Nests, Eggs, and Nestlings of North American Birds. Cleveland: Collins, 1978.
MLA引文Harrison, Colin James Oliver. A Field Guide to the Nests, Eggs, and Nestlings of North American Birds. Collins, 1978.
警告：这些引文格式不一定是100％准确.