Collett , H., & Hooker, J. D. (1921). Flora simlensis: A handbook of the flowering plants of Simla and the neighbourhood. Thacker, Spink.
Citazione stile Chigago Style (17a edizione)Collett , Henry, e Joseph D. Hooker. Flora Simlensis: A Handbook of the Flowering Plants of Simla and the Neighbourhood. Calcutta: Thacker, Spink, 1921.
Citatione MLA (9a ed.)Collett , Henry, e Joseph D. Hooker. Flora Simlensis: A Handbook of the Flowering Plants of Simla and the Neighbourhood. Thacker, Spink, 1921.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.