Trail - bear grass No. 18
MLA
McClintock, Walter, 1870-1949. Trail - bear grass No. 18. undated. https://collections.library.yale.edu/catalog/10453638.
APA, 6th edition
McClintock, Walter, 1870-1949. (undated)[Trail - bear grass No. 18]. https://collections.library.yale.edu/catalog/10453638.