Cita APA (7a ed.)

Rufelt, H. (1957). Studies on the geotropism of wheat roots. C. Bloms.

Cita Chicago Style (17a ed.)

Rufelt, Henry. Studies on the Geotropism of Wheat Roots. Lund: C. Bloms, 1957.

Cita MLA (9a ed.)

Rufelt, Henry. Studies on the Geotropism of Wheat Roots. C. Bloms, 1957.