Gammans, N. (2018). Bumblebees: An introduction. Bumblebee Conservation Trust.
Chicago Style (17th ed.) CitationGammans, Nikki. Bumblebees: An Introduction. [Erscheinungsort nicht ermittelbar]: Bumblebee Conservation Trust, 2018.
MLA (9th ed.) CitationGammans, Nikki. Bumblebees: An Introduction. Bumblebee Conservation Trust, 2018.
Warning: These citations may not always be 100% accurate.