Gaya APA
Gordis, Leon. (2014).
Epidemiology (Fifth edition.).
Canada:
elsevier.
Gaya Chicago
Gordis, Leon.
Epidemiology.
Fifth edition.
Canada:
elsevier,
2014.
eBook Kesehatan Masyarakat.
Gaya MLA
Gordis, Leon.
Epidemiology.
Fifth edition.
Canada:
elsevier,
2014.
eBook Kesehatan Masyarakat.
Gaya Turabian
Gordis, Leon.
Epidemiology.
Fifth edition.
Canada:
elsevier,
2014.
eBook Kesehatan Masyarakat.