Cita APA

Richardson, R. P. 1., & Landis, E. H. n. 1. (1915). Numbers, variables and Mr. Russell's philosophy. Chicago: Open Court.

Citación estilo Chicago

Richardson, Robert Porterfield 1876-, y Edward Horace n. 1876 Landis. Numbers, Variables and Mr. Russell's Philosophy. Chicago: Open Court, 1915.

Cita MLA

Richardson, Robert Porterfield 1876-, y Edward Horace n. 1876 Landis. Numbers, Variables and Mr. Russell's Philosophy. Chicago: Open Court, 1915.