Gaya APA

Hubbard, L. Ron. (2012). Horticulture: For A Greener World . California: Bridge Publication.

Gaya Chicago

Hubbard, L. Ron. Horticulture: For A Greener World. California: Bridge Publication, 2012. Text.

Gaya MLA

Hubbard, L. Ron. Horticulture: For A Greener World. California: Bridge Publication, 2012. Text.

Gaya Turabian

Hubbard, L. Ron. Horticulture: For A Greener World. California: Bridge Publication, 2012. Print.