Hubbard, L. Ron, 1911-1986 The Research and discovery series : a running record of research into-mind and life Vol. 10 : Wichita, Kansas, January-february 1952 / by L. Ron Hubbard. - 2a ed. - Los Angeles, Cal. : Bridge : Copenhagen : New Era, 1989. - 415 p. Incluye bibliografía ISBN: 8773363952 (New Era Publications) 0884042189 No. de Clasificación Universal Decimal: OC 608.1 (03)=20 HUB Vol.10.