APA (7th ed.) Citation

Harsha, B. (1983). Natural gas pricing. [National League of Cities?].

Chicago Style (17th ed.) Citation

Harsha, Barbara. Natural Gas Pricing. [Washington, D. C.?]: [National League of Cities?], 1983.

MLA (9th ed.) Citation

Harsha, Barbara. Natural Gas Pricing. [National League of Cities?], 1983.

Warning: These citations may not always be 100% accurate.