Cita APA (7th ed.)
Malik, C. H. (1980). The two tasks. Cornerstone Books.
Cita Chicago (17th ed.)
Malik, Charles Habib. The Two Tasks. Westchester, IL: Cornerstone Books, 1980.
Cita MLA (9th ed.)
Malik, Charles Habib. The Two Tasks. Cornerstone Books, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.