Gaya APA
DAVIS, L, E., HUGHES, J, R, , . (1965).
American economy history : .
Homewood, Illinois:
Richard D. Irwin.
Gaya MLA
DAVIS, Lance, E.., HUGHES, Jonathan, R.T., , .
"American economy history : ".
Homewood, Illinois:
Richard D. Irwin,
1965.
Buku.