APA (7th ed.) Citation

Trowbridge, R. J. (1968). Sample bids and leases, proposals and qualifications. National Recreation and Park Association.

Chicago Style (17th ed.) Citation

Trowbridge, Robert J. Sample Bids and Leases, Proposals and Qualifications. Washington: National Recreation and Park Association, 1968.

MLA (9th ed.) Citation

Trowbridge, Robert J. Sample Bids and Leases, Proposals and Qualifications. National Recreation and Park Association, 1968.