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