APA (7th ed.) Citation

Guamán Poma de Ayala, F. (1978). Letter to a king: A picture-history of the Inca civilisation. Allen & Unwin.

Chicago Style (17th ed.) Citation

Guamán Poma de Ayala, Felipe. Letter to a King: A Picture-history of the Inca Civilisation. London [u.a.]: Allen & Unwin, 1978.

MLA (9th ed.) Citation

Guamán Poma de Ayala, Felipe. Letter to a King: A Picture-history of the Inca Civilisation. Allen & Unwin, 1978.