Dyfyniad APA

American Academy of Allergy. (1971). 1971 Membership directory (First edition.). American Academy of Allergy.

Dyfyniad Arddull Chicago

American Academy of Allergy. 1971 Membership Directory. First edition. Wisconsin: American Academy of Allergy, 1971.

Dyfyniad MLA

American Academy of Allergy. 1971 Membership Directory. First edition. American Academy of Allergy, 1971.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.