Cita APA (7a ed.)

Fletcher, L., Heinzel, P., van Driel-Gesztelyi, L., Mandrini, C., & Fárník, F. Preface.

Cita Chicago Style (17a ed.)

Fletcher, L., P. Heinzel, L. van Driel-Gesztelyi, C.H Mandrini, y F. Fárník. Preface.

Cita MLA (8a ed.)

Fletcher, L., et al. Preface.