Cita APA (7a ed.)

Paterson, D. W., & Smith, H. F. (1960). Work simplification in agriculture. Land Books.

Cita Chicago Style (17a ed.)

Paterson, D. W., y H. F. Smith. Work Simplification in Agriculture. London: Land Books, 1960.

Cita MLA (8a ed.)

Paterson, D. W., y H. F. Smith. Work Simplification in Agriculture. Land Books, 1960.