Cita APA (7a ed.)

Koebel, W. H. (1919). South America: An industrial and commercial field (1st published, 2nd impr.). T. Fisher Unwin.

Cita Chicago Style (17a ed.)

Koebel, W. H. South America: An Industrial and Commercial Field. 1st published, 2nd impr. London: T. Fisher Unwin, 1919.

Cita MLA (9a ed.)

Koebel, W. H. South America: An Industrial and Commercial Field. 1st published, 2nd impr. T. Fisher Unwin, 1919.