1966a
The following is a reference to a book by H. Aspden published by Sabberton Publications in 1966.
THE THEORY OF GRAVITATION: 2ND EDITION
Eventually excerpts from this work will be added to these web pages and may be accessed by pressing: The Theory of Gravitation. The book updates Dr. Aspden’s theory of gravitation up to the year 1966, but these web pages show the onward development and offer access to more recent publications covering this subject. See: Sabberton Publications.