Research methods in social relations
Selttiz, C.
Research methods in social relations - London : Methuen, 1965. - xvi, 622 p. ; 23 cm.
Research methods
Methods, Research
300.018 SEL
Research methods in social relations - London : Methuen, 1965. - xvi, 622 p. ; 23 cm.
Research methods
Methods, Research
300.018 SEL