Cooke, J. P., & Stöckhardt, J. A. (1868). Chemical problems and reactions to accompany Stöckhardt's Elements of chemistry. E. H. Butler.
Lua i Stíl Chicago (17ú heag.)Cooke, Josiah Parsons, agus Julius Adolph Stöckhardt. Chemical Problems and Reactions to Accompany Stöckhardt's Elements of Chemistry. Philadelphia: E. H. Butler, 1868.
Lua MLA (8ú heag.)Cooke, Josiah Parsons, agus Julius Adolph Stöckhardt. Chemical Problems and Reactions to Accompany Stöckhardt's Elements of Chemistry. E. H. Butler, 1868.
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