Παραπομπή σε μορφή APA (7η εκδ.)

Não informado. Puerto Rico Health Bulletin. Insular Department of Health.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Não informado. Puerto Rico Health Bulletin. San Juan: Insular Department of Health.

Παραπομπή σε μορφή MLA (8th εκδ.)

Não informado. Puerto Rico Health Bulletin. Insular Department of Health.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.