APA-referens (7:e uppl.)

BURNS ROBERT B. (2000). INTRODUCTION TO RESEARCH METHODS (4TH.). LONGMAN GROUP.

Chicago-referens (17:e uppl.)

BURNS ROBERT B. INTRODUCTION TO RESEARCH METHODS. 4TH. AUSTRALIA: LONGMAN GROUP, 2000.

MLA-referens (9:e uppl.)

BURNS ROBERT B. INTRODUCTION TO RESEARCH METHODS. 4TH. LONGMAN GROUP, 2000.