Cita APA (7a ed.)

Burrell, E. R., Hancock, J. C., & Elkins, B. P. (1972). Denmark, Sweden, Norway and West Germany (1. publ.). Methuen.

Cita Chicago Style (17a ed.)

Burrell, E. R., J. C. Hancock, y Brian P. Elkins. Denmark, Sweden, Norway and West Germany. 1. publ. London [u.a.]: Methuen, 1972.

Cita MLA (9a ed.)

Burrell, E. R., et al. Denmark, Sweden, Norway and West Germany. 1. publ. Methuen, 1972.