Helsham, R. 1. (1778). A course of lectures in natural philosophy: By the late Richard Helsham, M.D. prosessor of Physick and Natural Philosophy in the University of Dublin. Published by Bryan Robinson, M.D (The fifth edition.). Printed for William Sleater, James Williams, and William HallHead.
Chicago-Zitierstil (17. Ausg.)Helsham, Richard 1682?-1738. A Course of Lectures in Natural Philosophy: By the Late Richard Helsham, M.D. Prosessor of Physick and Natural Philosophy in the University of Dublin. Published by Bryan Robinson, M.D. The fifth edition. Dublin: Printed for William Sleater, James Williams, and William HallHead, 1778.
MLA-Zitierstil (9. Ausg.)Helsham, Richard 1682?-1738. A Course of Lectures in Natural Philosophy: By the Late Richard Helsham, M.D. Prosessor of Physick and Natural Philosophy in the University of Dublin. Published by Bryan Robinson, M.D. The fifth edition. Printed for William Sleater, James Williams, and William HallHead, 1778.