Helsham, R. A course of lectures in natural philosophy: By the late Richard Helsham, ... Published by Bryan Robinson, M.D (The sixth edition.).
Chicago Style (17th ed.) CitationHelsham, Richard. A Course of Lectures in Natural Philosophy: By the Late Richard Helsham, ... Published by Bryan Robinson, M.D. The sixth edition.
MLA (9th ed.) CitationHelsham, Richard. A Course of Lectures in Natural Philosophy: By the Late Richard Helsham, ... Published by Bryan Robinson, M.D. The sixth edition.
Warning: These citations may not always be 100% accurate.