Howlett, B.G., M.K. Walker, J.A. McCallum, and D.A.J. Teulon. “Small Flowervisiting Arthropods in New Zealand Pak Choi Fields”. New Zealand Plant Protection 62 (August 1, 2009): 86–91. Accessed October 1, 2022. https://journal.nzpps.org/index.php/nzpp/article/view/4790.