Drupal 7 - How To Limit Reference Field Options

► Django book for beginners: https://leanpub.com/django-the-easy-way/ https://samulinatri.com/blog/drupal-7-field-option-limit Samuli Natri is a programmer who is familiar with several programming languages and technologies including C/C++, OpenGL, Django, Drupal, Python, JavaScript, HTML and CSS. He attended Helsinki University of Technology (Computer Science) and Helsinki University (Social Sciences). Website: https://SamuliNatri.com Github: https://github.com/SamuliNatri Twitter: https://twitter.com/SamuliNatri Facebook: https://www.facebook.com/NatriSamuli