APA
National Botanical Gardens; Lucknow, . (1959). Ipomoea. : .
Chicago
National Botanical Gardens; Lucknow, . 1959. Ipomoea. : .
Harvard
National Botanical Gardens; Lucknow, . (1959). Ipomoea. : .
MLA
National Botanical Gardens; Lucknow, . Ipomoea. : . 1959.