APA (7th ed.) Citation

United States. Department of Agriculture. Office of the Secretary & Griffiths, D. (1930). Production of hyacinth bulbs. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Department of Agriculture. Office of the Secretary and David Griffiths. Production of Hyacinth Bulbs. Washington: U.S. GPO, 1930.

MLA (9th ed.) Citation

United States. Department of Agriculture. Office of the Secretary and David Griffiths. Production of Hyacinth Bulbs. U.S. GPO, 1930.