Editors' Top Picks

Join the Goodreads Author Program

Are you John L. Sloop, author of the books below?
Liquid Hydrogen as a Propulsion Fuel, 1945-1959 by John L. Sloop History of Rocketry and Astronautics by John L. Sloop Altitude Starting Tests of a 1000-Pound-Thrust Solid-Propella... by John L. Sloop Liquid hydrogen as a propulsion fuel, 1945-1959 / John L. Slo... by John L. Sloop Liquid Hydrogen As A Propulsion Fuel, 1945-1959 by John L. Sloop Liquid Hydrogen As A Propulsion Fuel, 1945-1959 by National Aeronautics and Sp...


To join the author program as John L. Sloop, you will first need to sign in to Goodreads. Then navigate back to this page to apply.


About the Author Program
Authors on Goodreads
Author Guidelines
Author Program How-To
Author & Advertisers Blog
Ask the Author: Featured Authors
About Goodreads