APA
(1953). Niagara Falls. Nowy Jork: Nester house Puublications.
Chicago
1953. Niagara Falls. Nowy Jork: Nester house Puublications.
Harvard
(1953). Niagara Falls. Nowy Jork: Nester house Puublications.
MLA
Niagara Falls. Nowy Jork: Nester house Puublications. 1953.