Cita APA (7th ed.)

Powell, H. B. (1978). Philadelphia's first fuel crisis: Jacob Cist and the developing market for Pennsylvania anthracite. Pennsylvania State University Press.

Cita Chicago (17th ed.)

Powell, Howard Benjamin. Philadelphia's First Fuel Crisis: Jacob Cist and the Developing Market for Pennsylvania Anthracite. University Park: Pennsylvania State University Press, 1978.

Cita MLA (8th ed.)

Powell, Howard Benjamin. Philadelphia's First Fuel Crisis: Jacob Cist and the Developing Market for Pennsylvania Anthracite. Pennsylvania State University Press, 1978.