Schalck, R. The Proper Care of Optics: Cleaning, Handling, Storage, and Shipping, 2019 Update. SPIE Digital Library.
Citazione stile Chigago Style (17a edizione)Schalck, Robert. The Proper Care of Optics: Cleaning, Handling, Storage, and Shipping, 2019 Update. SPIE Digital Library.
Citatione MLA (9a ed.)Schalck, Robert. The Proper Care of Optics: Cleaning, Handling, Storage, and Shipping, 2019 Update. SPIE Digital Library.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.