APA

Lachlan R. F., Verhagen L., Peters S. & Cate C. T. (20100601). Are there species-universal categories in bird song phonology and syntax? A comparative study of chaffinches (Fringilla coelebs), zebra finches (Taenopygia guttata), and swamp sparrows (Melospiza georgiana). : Journal of comparative psychology (Washington, D.C. : 1983).

Chicago

Lachlan R F, Verhagen L, Peters S and Cate C Ten. 20100601. Are there species-universal categories in bird song phonology and syntax? A comparative study of chaffinches (Fringilla coelebs), zebra finches (Taenopygia guttata), and swamp sparrows (Melospiza georgiana). : Journal of comparative psychology (Washington, D.C. : 1983).

Harvard

Lachlan R. F., Verhagen L., Peters S. and Cate C. T. (20100601). Are there species-universal categories in bird song phonology and syntax? A comparative study of chaffinches (Fringilla coelebs), zebra finches (Taenopygia guttata), and swamp sparrows (Melospiza georgiana). : Journal of comparative psychology (Washington, D.C. : 1983).

MLA

Lachlan R F, Verhagen L, Peters S and Cate C Ten. Are there species-universal categories in bird song phonology and syntax? A comparative study of chaffinches (Fringilla coelebs), zebra finches (Taenopygia guttata), and swamp sparrows (Melospiza georgiana). : Journal of comparative psychology (Washington, D.C. : 1983). 20100601.