Cita APA (7a ed.)

Primdahl, F. (1967). Automatic stepwise suppression of the zero of a Pen Ink Recorder. Det Danske Meteorologiske Institut.

Cita Chicago Style (17a ed.)

Primdahl, F. Automatic Stepwise Suppression of the Zero of a Pen Ink Recorder. Charlottenlund: Det Danske Meteorologiske Institut, 1967.

Cita MLA (9a ed.)

Primdahl, F. Automatic Stepwise Suppression of the Zero of a Pen Ink Recorder. Det Danske Meteorologiske Institut, 1967.