Cita APA (7a ed.)

Poulsen, J. E., & Snorrason, E. (1986). Nicolaus Steno: 1638-1686 : a re-consideration by Danish scientists. Nordisk Insulinlaboratorium.

Cita Chicago Style (17a ed.)

Poulsen, Jacob E., y Egili Snorrason. Nicolaus Steno: 1638-1686 : A Re-consideration by Danish Scientists. Gentofte (Denmark): Nordisk Insulinlaboratorium, 1986.

Cita MLA (9a ed.)

Poulsen, Jacob E., y Egili Snorrason. Nicolaus Steno: 1638-1686 : A Re-consideration by Danish Scientists. Nordisk Insulinlaboratorium, 1986.