Cita APA (7a ed.)

Fryer, P., & Pinheiro, P. M. (1961). Oldest ally: A portrait of Salazar's Portugal. D. Dobson.

Cita Chicago Style (17a ed.)

Fryer, Peter, y Patricia McGowan Pinheiro. Oldest Ally: A Portrait of Salazar's Portugal. London: D. Dobson, 1961.

Cita MLA (9a ed.)

Fryer, Peter, y Patricia McGowan Pinheiro. Oldest Ally: A Portrait of Salazar's Portugal. D. Dobson, 1961.