Citazione APA

Murphy, P. L. (1972). The constitution in crisis times 1918-1969. Harper Torch books.

Stile di citazione Chicago

Murphy, Paul L. The Constitution in Crisis Times 1918-1969. NewYork: Harper Torch books, 1972.

Citazione MLA

Murphy, Paul L. The Constitution in Crisis Times 1918-1969. Harper Torch books, 1972.