Cita APA (7a ed.)

Simán, G. (1974). Nitrogen status in growing cereals: With special attention to the use of plant analysis as a guide to supplemental fertilization. Royal Agricultural College of Sweden.

Cita Chicago Style (17a ed.)

Simán, Gyula. Nitrogen Status in Growing Cereals: With Special Attention to the Use of Plant Analysis as a Guide to Supplemental Fertilization. Uppsala: Royal Agricultural College of Sweden, 1974.

Cita MLA (8a ed.)

Simán, Gyula. Nitrogen Status in Growing Cereals: With Special Attention to the Use of Plant Analysis as a Guide to Supplemental Fertilization. Royal Agricultural College of Sweden, 1974.