Hass, J. E., Downes, D. H., Mitchell, E. J., & Stone, B. K. (1974). Financing the energy industry. Ballinger Publishing Company.

Hass, Jerome E., David H. Downes, Edward J. Mitchell, and Bernell K. Stone. Financing the Energy Industry. Cambridge, Mass: Ballinger Publishing Company, 1974.

Hass, Jerome E., et al. Financing the Energy Industry. Ballinger Publishing Company, 1974.