Cita APA (7a ed.)

Guttstadt, A., & Boehmer, G. H. (1891). The National Scientific Institutions at Berlin. Government Printing Of.

Cita Chicago Style (17a ed.)

Guttstadt, Albert, y George H. Boehmer. The National Scientific Institutions at Berlin. Washington: Government Printing Of, 1891.

Cita MLA (9a ed.)

Guttstadt, Albert, y George H. Boehmer. The National Scientific Institutions at Berlin. Government Printing Of, 1891.