APA
Heisenberg W., Eckart C. & Hoyt F. (1949). The physical principles of the quantum theory. New York: Dover Publications.
Chicago
Heisenberg Werner, Eckart Carl and Hoyt Frank. 1949. The physical principles of the quantum theory. New York: Dover Publications.
Harvard
Heisenberg W., Eckart C. and Hoyt F. (1949). The physical principles of the quantum theory. New York: Dover Publications.
MLA
Heisenberg Werner, Eckart Carl and Hoyt Frank. The physical principles of the quantum theory. New York: Dover Publications. 1949.