APA
Hunt Botanical Library. Pittsburgh P., Lawrence G. H. M., . (1968). B-P-H; Botánico-periodicum-huntianum. Pittsburgh, Pa: Hunt Botanical Library.
Chicago
Hunt Botanical Library. Pittsburgh Pa, Lawrence George Hill Mathewson, . 1968. B-P-H; Botánico-periodicum-huntianum. Pittsburgh, Pa: Hunt Botanical Library.
Harvard
Hunt Botanical Library. Pittsburgh P., Lawrence G. H. M., . (1968). B-P-H; Botánico-periodicum-huntianum. Pittsburgh, Pa: Hunt Botanical Library.
MLA
Hunt Botanical Library. Pittsburgh Pa, Lawrence George Hill Mathewson, . B-P-H; Botánico-periodicum-huntianum. Pittsburgh, Pa: Hunt Botanical Library. 1968.
