| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Computer-oriented accounting information systems | 978-0-538-01740-4 | 1985 | |
| Income tax procedure: 1973 ed., for returns of 1972 income and 1973 tax planning | 978-0-538-01410-6 | 1973 | |
| Income Tax Procedure: 1988 Tax Returns 1989 Tax Planning | 978-0-538-80157-7 | 1989 | |
| Income Tax Procedure | 978-0-538-01436-6 | 1987 | Harold Q Langenderfer |
| Income tax procedure for returns of 1977 income and 1978 tax planning | 978-0-538-01418-2 | 1978 | |
| Income tax procedure for returns of 1978 income and 1979 tax planning | 978-0-538-01419-9 | 1979 | |
| Personal Income Taxation 1988 | 978-0-538-01437-3 | 1987 | Harold Q Langenderfer |
| Personal Income Tax Procedure: 1988 Tax Returns 1989 Tax Planning | 978-0-538-80158-4 | 1989 | Harold Q. Langenderfer |
| Personal Income Tax Procedure | 978-0-538-80165-2 | 1997 | Harold Q Langenderfer |
| Personal income tax procedure: For returns of 1982 income and 1983 tax planning | 978-0-538-01421-2 | 1983 | |