Sandburg, C. (1992). Selected poems. Gramercy Books.
Cita Chicago Style (17a ed.)Sandburg, Carl. Selected Poems. New York, Estados Unidos: Gramercy Books, 1992.
Cita MLA (9a ed.)Sandburg, Carl. Selected Poems. Gramercy Books, 1992.
警告：这些引文格式不一定是100％准确.