Sproule, A. (1992). James Watt. Gramedia Pustaka Utama.
Chicago Style (17th ed.) CitationSproule, Anna. James Watt. Gramedia Pustaka Utama, 1992.
MLA (8th ed.) CitationSproule, Anna. James Watt. Gramedia Pustaka Utama, 1992.
Warning: These citations may not always be 100% accurate.