APA

Baedeker K., . (1909). The United States with excursions to Mexico, Cuba, Porto Rico and Alaska. Leipzig: Baedeker [u.a.].

Chicago

Baedeker Karl, . 1909. The United States with excursions to Mexico, Cuba, Porto Rico and Alaska. Leipzig: Baedeker [u.a.].

Harvard

Baedeker K., . (1909). The United States with excursions to Mexico, Cuba, Porto Rico and Alaska. Leipzig: Baedeker [u.a.].

MLA

Baedeker Karl, . The United States with excursions to Mexico, Cuba, Porto Rico and Alaska. Leipzig: Baedeker [u.a.]. 1909.