J M Elena Rossello. (1993). FAO plant production and protection paper N.75: Technical guidelines for field variety trials. Rome: FAO.
استشهاد بنمط شيكاغوJ M Elena Rossello. FAO Plant Production and Protection Paper N.75: Technical Guidelines for Field Variety Trials. Rome: FAO, 1993.
MLA استشهادJ M Elena Rossello. FAO Plant Production and Protection Paper N.75: Technical Guidelines for Field Variety Trials. Rome: FAO, 1993.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.