[O Southland, chorus, mixed voices]
MLA
Johnson, J. Rosamond (John Rosamond), 1873-1954, Johnson, James Weldon, 1871-1938. [O Southland, chorus, mixed voices]. [c1919]. https://collections.library.yale.edu/catalog/2066283.
APA, 6th edition
Johnson, J. Rosamond (John Rosamond), 1873-1954, & Johnson, James Weldon, 1871-1938. ([c1919])[[O Southland, chorus, mixed voices]]. https://collections.library.yale.edu/catalog/2066283.