Não informado. (1859). Chemist and Druggist. Pharmaceutical Society of Northern Ireland.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Chemist and Druggist. Kent, Inglaterra: Pharmaceutical Society of Northern Ireland, 1859.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Chemist and Druggist. Pharmaceutical Society of Northern Ireland, 1859.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.