Roberts, H. (1965). Elementary book - keeping exercises/2e (2nd ed.). Edward Arnold limited.
शिकागो स्टाइल उद्धरणRoberts, H.C. Elementary Book - Keeping Exercises/2e. 2nd ed. London: Edward Arnold limited, 1965.
एमएलए उद्धरणRoberts, H.C. Elementary Book - Keeping Exercises/2e. 2nd ed. Edward Arnold limited, 1965.
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