Langdon, D. B. (1951). Practice of book keeping with some opinions on its nature, status and future. Phoneniox house.
শিকাগো স্টাইলে সাইটেশনLangdon, Daviers B.N. Practice of Book Keeping with Some Opinions on Its Nature, Status and Future. London: Phoneniox house, 1951.
এমএলএ সাইটেশনLangdon, Daviers B.N. Practice of Book Keeping with Some Opinions on Its Nature, Status and Future. Phoneniox house, 1951.
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