Gaya APA
Schmidt, H.
(1972).
The phenomenon of spontaneous groups.Conc(i) 2(1970-1974)6-10
.
:
.
Gaya MLA
Schmidt, Herman.
"The phenomenon of spontaneous groups.Conc(i) 2(1970-1974)6-10 ".
:
,
1972.
Majalah.