APA (7th ed.) Citation

Apostel, L., & Vandamme, F. J. Formele logika (2. dr.). de Sikkel.

Chicago Style (17th ed.) Citation

Apostel, Léo, and Fernand J. Vandamme. Formele Logika. 2. dr. Malle: de Sikkel.

MLA (9th ed.) Citation

Apostel, Léo, and Fernand J. Vandamme. Formele Logika. 2. dr. de Sikkel.

Warning: These citations may not always be 100% accurate.