Dyfyniad APA

American Academy of Allergy. (1977). 1977 Membership directory (First edition.). American Academy of Allergy.

Dyfyniad Arddull Chicago

American Academy of Allergy. 1977 Membership Directory. First edition. Wisconsin: American Academy of Allergy, 1977.

Dyfyniad MLA

American Academy of Allergy. 1977 Membership Directory. First edition. American Academy of Allergy, 1977.

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