APA (7th ed.) Citation

(2017). Intro Spanish lesson ([verbs ending in 'er'].). Language Tree.

Chicago Style (17th ed.) Citation

Intro Spanish Lesson. [verbs ending in 'er']. [Place of publication not identified]: Language Tree, 2017.

MLA (9th ed.) Citation

Intro Spanish Lesson. [verbs ending in 'er']. Language Tree, 2017.