Kerrel, BillKerrel, Bill Manual de energia piramidal / Bill Kerrell / coaut. Kathy Goggin / trad. Enrique Asseburg - 12a ed - Mexico : Posada , 1982 , c1978. - 193 p. enc. : il. retrs. 40 ISBN: 968-433-014-6 Subjects--Topical Terms: OcultismoPiramides---Energia Dewey Class. No.: 133 KER