APA (7th ed.) Citation

Ikonomova, E., Kerchev, G., Kercheva, M., & Dilkova, R. EFFECT OF LONG-TERM NITROGEN FERTILIZATION ON THE SOIL PHYSICAL PROPERTIES.

Chicago Style (17th ed.) Citation

Ikonomova, E., G. Kerchev, M. Kercheva, and R. Dilkova. EFFECT OF LONG-TERM NITROGEN FERTILIZATION ON THE SOIL PHYSICAL PROPERTIES.

MLA (9th ed.) Citation

Ikonomova, E., et al. EFFECT OF LONG-TERM NITROGEN FERTILIZATION ON THE SOIL PHYSICAL PROPERTIES.