Cita APA (7th ed.)

Sibum, H. O. Exploring the margins of precision: H. Otto Sibum. Natural standards.(2001).

Cita Chicago (17th ed.)

Sibum, H. Otto. "Exploring the Margins of Precision: H. Otto Sibum." Natural Standards.(2001) .

Cita MLA (8th ed.)

Sibum, H. Otto. "Exploring the Margins of Precision: H. Otto Sibum." Natural Standards.(2001), .