No limiar do terceiro milênio
By: Mário Sassi.
Edition: 3. ed. rev. e aumentada.
Publisher: Editora Vale do Amanhecer
Published: 1974
Place of publication: [Brasília]
Language: por
Number of pages: 93
Subjects: Spiritualism.; Mediums.
Notes: Second ed. published in 1972 under title: Manual de instruções.