APA (American Psychological Association) style is one of the common citation styles for referencing:
Publication Manual of the American Psychological Association by 
21st Century Journalism Handbook: Essential Skills for the Modern Journalist by 
The Bloomberg way : a guide for reporters and editors by 
The Copyeditor's Handbook: A Guide for Book Publishing and Corporate Communications, With Exercises and Answer Keys by 
The Data Journalism Handbook by 
Design for Media by 
The Global Public Relations Handbook: Theory, Research, and Practice by 
The Handbook of Global Communication and Media Ethics by 
The Handbook of Global Media and Communication Policy by 
The Handbook of Global Online Journalism by 
A Handbook of Media and Communication Research: Qualitative and Quantitative Methodologies by 
The Handbook of Media and Mass Communication Theory by 
Handbook of Media Audiences by 
Handbook of Media Economics by 
Handbook of Research on Digital Media and Advertising by 
Handbook of Research on Effective Advertising Strategies in the Social Media Age by 
Handbook of Research on Media Literacy in the Digital Age by 
Handbook on the Economics of the Media by 
Journalism next : a practical guide to digital reporting and publishing by 
Media Career Guide: Preparing for Jobs in the 21st Century by 
Media Convergence Handbook - Vol. 1 by 
Media Writer's Handbook: A Guide to Common Writing and Editing Problems by 
Multimedia Journalism by 
The Newspapers Handbook by 
The Public Relations Handbook by 
Reporting Disaster on Deadline: A Handbook for Students and Professionals by 
Routledge Handbook of Chinese Media by 
Routledge Handbook of New Media in Asia by 
