MLA
Parrish, Edward, 1822-1872. A treatise on pharmacy : designed as a text-book for the student, and as a guide for the physician and pharmaceutist, containing the officinal and many unofficinal formulas, and numerous examples of extemporaneous prescriptions. 1867. Medical Heritage Imprints Collection . Robert W. Woodruff Health Sciences Center. Library. https://digital.library.emory.edu/purl/279v15dz5t-cor.
APA, 6th edition
Parrish, Edward, 1822-1872. (1867)[A treatise on pharmacy : designed as a text-book for the student, and as a guide for the physician and pharmaceutist, containing the officinal and many unofficinal formulas, and numerous examples of extemporaneous prescriptions, 3rd edition thoroughly revised and improved with important additions.]. Medical Heritage Imprints Collection , Robert W. Woodruff Health Sciences Center. Library. https://digital.library.emory.edu/purl/279v15dz5t-cor.
Chicago
Parrish, Edward, 1822-1872, A treatise on pharmacy : designed as a text-book for the student, and as a guide for the physician and pharmaceutist, containing the officinal and many unofficinal formulas, and numerous examples of extemporaneous prescriptions, 1867, Medical Heritage Imprints Collection , Robert W. Woodruff Health Sciences Center. Library. https://digital.library.emory.edu/purl/279v15dz5t-cor.