Cita APA (7th ed.)

Pitcairn, E. H. (1899). Unwritten laws and ideals of active careers. Smith, Elder, & Co..

Cita Chicago (17th ed.)

Pitcairn, E. H. Unwritten Laws and Ideals of Active Careers. London: Smith, Elder, & Co., 1899.

Cita MLA (8th ed.)

Pitcairn, E. H. Unwritten Laws and Ideals of Active Careers. Smith, Elder, & Co., 1899.