{{Cite| last1 = Grolemund| first1 = Garrett| last2 = Spinu| first2 = Vitalie| last3 = Wickham| first3 = Hadley| last4 = Lyttle| first4 = Jan| last5 = Constigan| first5 = Imanuel| last6 = Law| first6 = Jason| last7 = Mitarotonda| first7 = Doug| last8 = Larmarange| first8 = Joseph| last9 = Boiser| first9 = Jonathan| last10 = Lee| first10 = Chel Hee| title = lubridate: Make Dealing with Dates a Little Easier| access-date = 2016-06-12| date = 2016-04-06| url = https://cran.r-project.org/web/packages/lubridate/index.html}}