ISI. (1968). Indian standard specification for bone-meal as livestock feed supplement. Indian standards institution.
استشهاد بنمط شيكاغوISI. Indian Standard Specification for Bone-meal as Livestock Feed Supplement. Indian standards institution, 1968.
MLA استشهادISI. Indian Standard Specification for Bone-meal as Livestock Feed Supplement. Indian standards institution, 1968.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.