Gaya APA
Walker,, J., M. (1993).
Methods in Molecular Biology Enzymes of Molecular Biology (1993).
New Jersey:
Humana Press.
Gaya MLA
Walker,, John, M..
"Methods in Molecular Biology Enzymes of Molecular Biology".
1993
New Jersey:
Humana Press,
1993.
Buku Pelajaran.