By authors: Edwin James, Stephen Harriman Long, Thomas Say ISBN: 978-1-4290-0085-7 Product Format: Hardback
By authors: Edwin James, Stephen Harriman Long, Thomas Say ISBN: 978-1-4290-0090-1 Product Format: Paperback
By authors: Edwin James, Stephen Harriman Long, Thomas Say ISBN: 978-1-4290-0086-4 Product Format: Hardback