APA

Trecker H. B., . (1973). Goals for social welfare, 1973-1993: an overview of the next two decades. New York: Association Press.

Chicago

Trecker Harleigh Bradley, . 1973. Goals for social welfare, 1973-1993: an overview of the next two decades. New York: Association Press.

Harvard

Trecker H. B., . (1973). Goals for social welfare, 1973-1993: an overview of the next two decades. New York: Association Press.

MLA

Trecker Harleigh Bradley, . Goals for social welfare, 1973-1993: an overview of the next two decades. New York: Association Press. 1973.