Gaya APA
al., R, B, E. (1988).
What shall I do; questions and answers in cardiology .
Beaconsfield:
Beaconsfield Pub. Ltd..
Gaya MLA
al., Roger, Blackwood,, Et..
"What shall I do; questions and answers in cardiology".
Beaconsfield:
Beaconsfield Pub. Ltd.,
1988.
Text.