Horner, C. E., & Booth, E. S. (1953). Spring flowers of southeastern Washington and northeastern Oregon. Walla Walla College, Dept. of Biological Sciences.
Citação do estilo Chicago (17ª ed.)Horner, Chester E., e Ernest S. Booth. Spring Flowers of Southeastern Washington and Northeastern Oregon. College Place, Wash.: Walla Walla College, Dept. of Biological Sciences, 1953.
Citação MLA (8ª ed.)Horner, Chester E., e Ernest S. Booth. Spring Flowers of Southeastern Washington and Northeastern Oregon. Walla Walla College, Dept. of Biological Sciences, 1953.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.