Gaya APA

Friedlander, W, A., Apte, R, Z. (1980). Introduction to social welfare (5th ed). Englewood Cliffs, NJ: Prentice Hall.

Gaya MLA

Friedlander, Walter, A.., Apte, Robert, Z.. "Introduction to social welfare". 5th ed Englewood Cliffs, NJ: Prentice Hall, 1980. Text.