Gaya APA
Nelson-Jones, R. (1990).
Pratical counselling and helping skills, helping clients to help themselves, 2nd ed. .
London:
Cassell.
Gaya MLA
Nelson-Jones, Richard.
"Pratical counselling and helping skills, helping clients to help themselves, 2nd ed. ".
London:
Cassell,
1990.
Buku.