APA (7th ed.) Citation

Block, H. &. R. (1980). Income tax workbook. Macmillan.

Chicago Style (17th ed.) Citation

Block, H & R. Income Tax Workbook. N.Y: Macmillan, 1980.

MLA (9th ed.) Citation

Block, H & R. Income Tax Workbook. Macmillan, 1980.

Warning: These citations may not always be 100% accurate.