1987 -Gaines, T.P. Putting green topsoil mixtures that meet USGA specifications. Carolinas Newsletter, 23(2):18-21. 1992-Gaines, T.P. Water permeability rates of a putting green rootzone mixture (greensmix). Carolinas Newsletter, 28(3):40. 1993-Gaines, T.P. Investigating the options in the new USGA green construction recommendations. USGA Green Section Record, 31(6):7-10. 1994-Gaines, T.P. and S.