APA Style

Warning: Undefined variable $authors_string in /var/www/univlia/slims/template/default/citation/apa_style_template.php on line 21
Teaching by principles: an interactive approach to language pedagogy. (c2001). New York: Longman.

MLA Style

Warning: Undefined variable $authors_string in /var/www/univlia/slims/template/default/citation/mla_style_template.php on line 21
Teaching by principles: an interactive approach to language pedagogy. 2nd ed.. New York: Longman, c2001. Text.