Não informado. (1948). Frontiers of Plant Science. Connecticut Agricultural Experiment Station.
Lua i Stíl Chicago (17ú heag.)Não informado. Frontiers of Plant Science. New Haven, Conn: Connecticut Agricultural Experiment Station, 1948.
Lua MLA (8ú heag.)Não informado. Frontiers of Plant Science. Connecticut Agricultural Experiment Station, 1948.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.