| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Big time opportunities and strategies that turn pennies into millions | 978-0-13-076307-5 (0-13-076307-1) | 1973 |
| Successful moonlighting techniques that can make you rich, | 978-0-13-863423-0 (0-13-863423-8) | 1970 |
| Successful small business management | 978-0-13-872119-0 (0-13-872119-X) | 1978 |