Gaya APA
Ridley, John. (2004).
Ikhtisar Kesehatan dan Keselamatan Kerja = Health & Safety in Brief (3rd Edition).
Jakarta:
Erlangga.
Gaya Chicago
Ridley, John.
Ikhtisar Kesehatan dan Keselamatan Kerja = Health & Safety in Brief.
3rd Edition
Jakarta:
Erlangga,
2004.
Text.
Gaya MLA
Ridley, John.
Ikhtisar Kesehatan dan Keselamatan Kerja = Health & Safety in Brief.
3rd Edition
Jakarta:
Erlangga,
2004.
Text.
Gaya Turabian
Ridley, John.
Ikhtisar Kesehatan dan Keselamatan Kerja = Health & Safety in Brief.
3rd Edition
Jakarta:
Erlangga,
2004.
Print.