Weld, W. E., & Haskell, A. C. (1947). How to Chart: Facts from Figures with Graphics. Norwood, Massachusetts: Codex.
शिकागो स्टाइल उद्धरणWeld, Walter E., और Allan C. Haskell. How to Chart: Facts From Figures With Graphics. Norwood, Massachusetts: Codex, 1947.
एमएलए उद्धरणWeld, Walter E., और Allan C. Haskell. How to Chart: Facts From Figures With Graphics. Norwood, Massachusetts: Codex, 1947.
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