APA (7th ed.) Citation

Meyer-Abich, A. (1969). Alexander von Humboldt: 1769 - 1969. Inter Nationes.

Chicago Style (17th ed.) Citation

Meyer-Abich, Adolf. Alexander Von Humboldt: 1769 - 1969. Bonn - Bad Godesberg: Inter Nationes, 1969.

MLA (9th ed.) Citation

Meyer-Abich, Adolf. Alexander Von Humboldt: 1769 - 1969. Inter Nationes, 1969.

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