In reference lists, alphabetize by [university name, abbreviated] [department or unit name] if no author names are provided. Spell out the university name as the publisher.
WSU Extension. 2013. Hortsense: Home Gardener Fact Sheets for Managing Plant Problems with IPM or Integrated Pest Management. Washington State University. pep.wsu.edu/hortsense/.
WSU Small Farms Team. n.d. Drip Irrigation. Washington State University. smallfarms.wsu.edu/crops/irrigation/index.html.