Cita APA (7th ed.)

David, D., & Davidescu, V. (1982). Evaluation of fertility by plant and soil analysis. Abacus Press & Tunbridge Wells.

Cita Chicago (17th ed.)

David, Davidescu, i Velicica Davidescu. Evaluation of Fertility by Plant and Soil Analysis. England: Abacus Press & Tunbridge Wells, 1982.

Cita MLA (9th ed.)

David, Davidescu, i Velicica Davidescu. Evaluation of Fertility by Plant and Soil Analysis. Abacus Press & Tunbridge Wells, 1982.