Experiments and observations on a new apparatus, called, a machine for exhibiting perpetual electricity. In a letter to the Rev. Dr. Horsley, Sec. R. S. from Mr. William Henley, F.R.S. Read at the Royal Society, May 16, 1776.

MLA

Henley, William. Experiments and observations on a new apparatus, called, a machine for exhibiting perpetual electricity. In a letter to the Rev. Dr. Horsley, Sec. R. S. from Mr. William Henley, F.R.S. Read at the Royal Society, May 16, 1776. London : [s.n.], Printed in the Year MDCCLXXVI. [1776]

APA

Henley, W. (1776). Experiments and observations on a new apparatus, called, a machine for exhibiting perpetual electricity. In a letter to the Rev. Dr. Horsley, Sec. R. S. from Mr. William Henley, F.R.S. Read at the Royal Society, May 16, 1776. London : [s.n.].

Chicago

Henley, William. Experiments and observations on a new apparatus, called, a machine for exhibiting perpetual electricity. In a letter to the Rev. Dr. Horsley, Sec. R. S. from Mr. William Henley, F.R.S. Read at the Royal Society, May 16, 1776. London : [s.n.], Printed in the Year MDCCLXXVI. [1776]