American Psychological Association
Rommerskirchen, Giovanni P ( 1978 ). Bibliografia Missionaria Anno Xli 1977 ( 00 ed. ). Pontifical Gregorian University.
Modern Language Association
Rommerskirchen, Giovanni P. Bibliografia Missionaria Anno Xli 1977 . Pontifical Gregorian University. 1978
Chicago Citation
Rommerskirchen, Giovanni P. Bibliografia Missionaria Anno Xli 1977 . 00 .Rome
: Pontifical Gregorian University, 1978.
American Medical Association
Rommerskirchen, Giovanni P. Bibliografia Missionaria Anno Xli 1977 . Pontifical Gregorian University; 1978.