American Psychological Association 6th edition

Czyżak, P., & Słowiński, R. (n.d.). A fuzzy MOLP method with graphical display of fuzziness.

ISO-690 (author-date, English)

CZYŻAK, Piotr and SŁOWIŃSKI, Roman, [no date]. A fuzzy MOLP method with graphical display of fuzziness. .

Modern Language Association 9th edition

Czyżak, P., and R. Słowiński. A Fuzzy MOLP Method With Graphical Display of Fuzziness.

Mohr Siebeck - Recht (Deutsch - Österreich)

Czyżak, Piotr/Słowiński, Roman: A fuzzy MOLP method with graphical display of fuzziness,

Emerald - Harvard

Czyżak, P. and Słowiński, R. (n.d.). “A fuzzy MOLP method with graphical display of fuzziness”.

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