Nitrogen nutrion and plant growth. (1999). Nitrogen nutrion and plant growth. Enfield, New Hampshire: Science.
استشهاد بنمط شيكاغوNitrogen nutrion and plant growth. Nitrogen Nutrion and Plant Growth. Enfield, New Hampshire: Science, 1999.
MLA استشهادNitrogen nutrion and plant growth. Nitrogen Nutrion and Plant Growth. Enfield, New Hampshire: Science, 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.