Agrell, N. P. (1683). Institutiones arithmeticae .. Keyser.
Lua i Stíl Chicago (17ú heag.)Agrell, Nicolaus Petri. Institutiones Arithmeticae .. Stockholm: Keyser, 1683.
Lua MLA (8ú heag.)Agrell, Nicolaus Petri. Institutiones Arithmeticae .. Keyser, 1683.
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