APA

Park R. E., Burgess E. W., . (1969). Introduction to the science of sociology including the original index to basic sociological concepts. Chicado: The University of Chicago Press.

Chicago

Park Robert E, Burgess Ernest W, . 1969. Introduction to the science of sociology including the original index to basic sociological concepts. Chicado: The University of Chicago Press.

Harvard

Park R. E., Burgess E. W., . (1969). Introduction to the science of sociology including the original index to basic sociological concepts. Chicado: The University of Chicago Press.

MLA

Park Robert E, Burgess Ernest W, . Introduction to the science of sociology including the original index to basic sociological concepts. Chicado: The University of Chicago Press. 1969.