Cita APA (7th ed.)
Lapedes, D. N. Yearbook of Science and Technology: 1973. McGraw-Hill.
Cita Chicago (17th ed.)
Lapedes, Daniel N. Yearbook of Science and Technology: 1973. EUA: McGraw-Hill.
Cita MLA (9th ed.)
Lapedes, Daniel N. Yearbook of Science and Technology: 1973. McGraw-Hill.
Atenció: Aquestes cites poden no estar 100% correctes.