Gaya APA
Walker, Richard. (1998).
Under the microscope 1 : heart (-).
United States:
Grolier Educational.
Gaya Chicago
Walker, Richard.
Under the microscope 1 : heart.
-
United States:
Grolier Educational,
1998.
Text.
Gaya MLA
Walker, Richard.
Under the microscope 1 : heart.
-
United States:
Grolier Educational,
1998.
Text.
Gaya Turabian
Walker, Richard.
Under the microscope 1 : heart.
-
United States:
Grolier Educational,
1998.
Print.