APA
Clemens S., . (1976). Life on the Mississippi. [б. м.]: Educational progress.
Chicago
Clemens Samuel, . 1976. Life on the Mississippi. [б. м.]: Educational progress.
Harvard
Clemens S., . (1976). Life on the Mississippi. [б. м.]: Educational progress.
MLA
Clemens Samuel, . Life on the Mississippi. [б. м.]: Educational progress. 1976.
