SPILKER, B., AYERS, B., & ROBINSON, J. (2013). Mc Graw-Hill's taxation of business entities. McGraw-Hill Book Company.

SPILKER, Brian, Ben AYERS, and John ROBINSON. Mc Graw-Hill's Taxation of Business Entities. McGraw-Hill Book Company, 2013.

SPILKER, Brian, et al. Mc Graw-Hill's Taxation of Business Entities. McGraw-Hill Book Company, 2013.