Gaya APA
Nielsen,B.L., . (2004).
British poultry science an International journal,vol.45 no.3 june 2004 .
Singapore:
pustaka pelajar.
Gaya MLA
Nielsen,B.L., .
"British poultry science an International journal,vol.45 no.3 june 2004".
Singapore:
pustaka pelajar,
2004.
Text.