Gaya APA

Series, T, L, H. (2012). Horticulture For A Greener World . Commerce,California 90022 USA: Bridge Publications,INC.

Gaya MLA

Series, The, L.Ron, Hubbard. "Horticulture For A Greener World". Commerce,California 90022 USA: Bridge Publications,INC, 2012. Text.