APA

Olson K. W. e. l., . (199). An outline of American history. [S.l: s.n.].

Chicago

Olson Keith W ed lit, . 199. An outline of American history. [S.l: s.n.].

Harvard

Olson K. W. e. l., . (199). An outline of American history. [S.l: s.n.].

MLA

Olson Keith W ed lit, . An outline of American history. [S.l: s.n.]. 199.