APA (7th ed.) Citation

Vocational Education Productions, California Association of Nurserymen, California Landscape Contractors Association, & Harrigan, J. (1991). Choose horticulture!

Chicago Style (17th ed.) Citation

Vocational Education Productions, California Association of Nurserymen, California Landscape Contractors Association, and Jim Harrigan. Choose Horticulture! 1991.

MLA (9th ed.) Citation

Vocational Education Productions, et al. Choose Horticulture! 1991.