By authors: Edwin James, Stephen Harriman Long, Thomas Say ISBN: 978-1-4290-0091-8 Product Format: Paperback
By authors: Edwin James, Stephen Harriman Long, Thomas Say ISBN: 978-1-4290-0087-1 Product Format: Hardback
By author: Stephen Harriman Long ISBN: 978-1-4290-4544-5 Product Format: Paperback