李永新. (2021). 笔杆子是怎样炼成的: Practice of official document writing. 清华大学出版社.
Chicago (17e ed.) Bronvermelding李永新. 笔杆子是怎样炼成的: Practice of Official Document Writing. 清华大学出版社, 2021.
MLA (8e ed.) Bronvermelding李永新. 笔杆子是怎样炼成的: Practice of Official Document Writing. 清华大学出版社, 2021.
Let op: Deze citaties zijn niet altijd 100% accuraat.