APA (7th ed.) Citation

Ringquist, E. J. (1993). Environmental protection at the state level: Politics and progress in controlling pollution. M.E. Sharpe.

Chicago Style (17th ed.) Citation

Ringquist, Evan J. Environmental Protection at the State Level: Politics and Progress in Controlling Pollution. Armonk, N.Y: M.E. Sharpe, 1993.

MLA (9th ed.) Citation

Ringquist, Evan J. Environmental Protection at the State Level: Politics and Progress in Controlling Pollution. M.E. Sharpe, 1993.