Cita APA (7a ed.)

Pereyra de Altamira, S. M., & Trippi, V. S. (1991). C/N and PS/N ratios during growth and senescence of Phaseolus vulgaris L. leaves. Facultad de Ciencias Agropecuarias.

Cita Chicago Style (17a ed.)

Pereyra de Altamira, S. M., y V. S. Trippi. C/N and PS/N Ratios During Growth and Senescence of Phaseolus Vulgaris L. Leaves. Facultad de Ciencias Agropecuarias, 1991.

Cita MLA (8a ed.)

Pereyra de Altamira, S. M., y V. S. Trippi. C/N and PS/N Ratios During Growth and Senescence of Phaseolus Vulgaris L. Leaves. Facultad de Ciencias Agropecuarias, 1991.