Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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