APA
University of California computers systems research group, . (1994). 4.4BSD Programmer's supplementary documents (PSD). O'Relliy & Associates, Inc., America: .
Chicago
University of California computers systems research group, . 1994. 4.4BSD Programmer's supplementary documents (PSD). O'Relliy & Associates, Inc., America: .
Harvard
University of California computers systems research group, . (1994). 4.4BSD Programmer's supplementary documents (PSD). O'Relliy & Associates, Inc., America: .
MLA
University of California computers systems research group, . 4.4BSD Programmer's supplementary documents (PSD). O'Relliy & Associates, Inc., America: . 1994.