Grimm, W. C. (1966). Recognizing native shrubs (Primera edición.). Stackpole Books.
Citazione stile Chigago Style (17a edizione)Grimm, William Carey. Recognizing Native Shrubs. Primera edición. Pennsylvania: Stackpole Books, 1966.
Citatione MLA (8a ed.)Grimm, William Carey. Recognizing Native Shrubs. Primera edición. Stackpole Books, 1966.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.