http://book.klll.cc/ebooks/author/52406.opds?sort_order=release_date 2026-01-13T11:50:45Z Books by Bird, J. Malcolm (James Malcolm) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2026-01-13T11:50:45Z https://en.wikipedia.org/wiki/J._Malcolm_Bird See also: en.wikipedia 2026-01-13T11:50:45Z https://book.klll.cc/ebooks/63372.opds Einstein's Theories of Relativity and Gravitation J. Malcolm Bird