APA Edition Citation

Spencer, J. . .. (1964). Workers of humanity (1.). George G Harrap & Co Ltd.

Chicago Edition Citation

Spencer, John. Workers of Humanity. 1. London: George G Harrap & Co Ltd, 1964.

MLA Edition Citation

Spencer, John. Workers of Humanity. 1. George G Harrap & Co Ltd, 1964.

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