APA (7th ed.) Citation

Becker, A., & Mayer, J. (1907). Lernbuch der Erdkunde Lernbuch der Erdkunde.

Chicago Style (17th ed.) Citation

Becker, Anton, and Julius Mayer. "Lernbuch Der Erdkunde." Lernbuch Der Erdkunde 1907.

MLA (9th ed.) Citation

Becker, Anton, and Julius Mayer. "Lernbuch Der Erdkunde." Lernbuch Der Erdkunde, 1907.

Warning: These citations may not always be 100% accurate.