Kulvinskas, Viktoras P. Survival into the 21-st century : : planetary healers manual : includes a complete program of wheatgrass therapy / [electronic resource] / by Viktoras Kulvinskas ; front cover, Peter Max ; back cover and art, Jean White ; introduction, Dick Gregory.. — Expanded and updated.. — Woodstock, Ct. : : Omangod Press,, 1979, c1975.. — 323 p. : : ill. ; 28 cm.