Gaya APA
Crawford, J. Selwyn. (1984).
Principles & practice of obstetric anaesthesia (4th. Ed).
Oxford:
Blackwell Scientific.
Gaya Chicago
Crawford, J. Selwyn.
Principles & practice of obstetric anaesthesia.
4th. Ed
Oxford:
Blackwell Scientific,
1984.
Text.
Gaya MLA
Crawford, J. Selwyn.
Principles & practice of obstetric anaesthesia.
4th. Ed
Oxford:
Blackwell Scientific,
1984.
Text.
Gaya Turabian
Crawford, J. Selwyn.
Principles & practice of obstetric anaesthesia.
4th. Ed
Oxford:
Blackwell Scientific,
1984.
Print.