Citação norma APA

Langdon, D. B. (1951). Practice of book keeping with some opinions on its nature, status and future. Phoneniox house.

Citação norma Chicago

Langdon, Daviers B.N. Practice of Book Keeping with Some Opinions on Its Nature, Status and Future. London: Phoneniox house, 1951.

Citação norma MLA

Langdon, Daviers B.N. Practice of Book Keeping with Some Opinions on Its Nature, Status and Future. Phoneniox house, 1951.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.