APA (7th ed.) Citation

Murphy, R. C. (1978). The Polish Trade Union in the Ruhr Coal Field . labor organization and ethnicity Wilhelmian Germany.

Chicago Style (17th ed.) Citation

Murphy, Richard Charles. The Polish Trade Union in the Ruhr Coal Field . Labor Organization and Ethnicity Wilhelmian Germany. 1978.

MLA (8th ed.) Citation

Murphy, Richard Charles. The Polish Trade Union in the Ruhr Coal Field . Labor Organization and Ethnicity Wilhelmian Germany. 1978.

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