Speck, T., & Burgert, I. Plant stems: Functional design and mechanics.
Trích dẫn kiểu ChicagoSpeck, Thomas., và Ingo Burgert. Plant Stems: Functional Design and Mechanics.
Deismireacht MLASpeck, Thomas., và Ingo Burgert. Plant Stems: Functional Design and Mechanics.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.